/* ========================================
   IDENTYFLOW - LANDING PAGE STYLES
   Sistema Inteligente de Gestão Educacional
   ======================================== */

/* ========================================
   CSS CUSTOM PROPERTIES (VARIABLES)
   ======================================== */
:root {
    /* Primary Colors */
    --identy-blue: #4A90E2;
    --flow-purple: #7B5DFA;
    --deep-tech-blue: #1F2A48;
    --electric-lilac: #A68CFF;
    
    /* Neutral Colors */
    --soft-gray: #F5F7FA;
    --neutral-gray: #D9DFE8;
    --charcoal-dark: #2A2A2A;
    --white: #FFFFFF;
    
    /* Feedback Colors */
    --success: #36C986;
    --warning: #F7C948;
    --error: #E45454;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--identy-blue) 0%, var(--flow-purple) 100%);
    --gradient-hero: linear-gradient(135deg, var(--deep-tech-blue) 0%, #2d3a5f 50%, var(--flow-purple) 100%);
    --gradient-cta: linear-gradient(135deg, var(--identy-blue) 0%, var(--flow-purple) 100%);
    --gradient-card: linear-gradient(145deg, var(--white) 0%, var(--soft-gray) 100%);
    
    /* Typography */
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Font Sizes - Mobile First */
    --text-xs: 0.75rem;      /* 12px */
    --text-sm: 0.875rem;     /* 14px */
    --text-base: 1rem;       /* 16px */
    --text-lg: 1.125rem;     /* 18px */
    --text-xl: 1.25rem;      /* 20px */
    --text-2xl: 1.5rem;      /* 24px */
    --text-3xl: 1.875rem;    /* 30px */
    --text-4xl: 2.25rem;     /* 36px */
    --text-5xl: 3rem;        /* 48px */
    --text-6xl: 3.75rem;     /* 60px */
    
    /* Font Weights */
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-extrabold: 800;
    
    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.15);
    --shadow-glow: 0 0 40px rgba(123, 93, 250, 0.3);
    --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.08);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
    
    /* Container */
    --container-max: 1200px;
    --container-padding: 1rem;
    
    /* Header Height */
    --header-height: 72px;
}

/* ========================================
   CSS RESET & BASE STYLES
   ======================================== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    font-weight: var(--font-normal);
    line-height: 1.6;
    color: var(--charcoal-dark);
    background-color: var(--white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: var(--font-bold);
    line-height: 1.2;
    color: var(--charcoal-dark);
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button {
    font-family: inherit;
    font-size: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

ul, ol {
    list-style: none;
}

/* ========================================
   UTILITY CLASSES
   ======================================== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ========================================
   BUTTONS
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-family: var(--font-heading);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    text-align: center;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    cursor: pointer;
    white-space: nowrap;
}

.btn svg {
    width: 18px;
    height: 18px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    border: none;
    box-shadow: 0 4px 15px rgba(123, 93, 250, 0.3);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s ease;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(123, 93, 250, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--identy-blue);
    border: 2px solid var(--identy-blue);
}

.btn-outline:hover {
    background: var(--identy-blue);
    color: var(--white);
}

.btn-ghost {
    background: rgba(255, 255, 255, 0.1);
    color: var(--charcoal-dark);
    border: 2px solid transparent;
}

.btn-ghost:hover {
    background: rgba(74, 144, 226, 0.1);
    color: var(--identy-blue);
}

.btn-white {
    background: var(--white);
    color: var(--flow-purple);
    border: none;
    box-shadow: var(--shadow-lg);
}

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.btn-ghost-white {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-ghost-white:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--white);
}

.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-base);
}

.btn-block {
    width: 100%;
}

/* ========================================
   HEADER & NAVIGATION
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(217, 223, 232, 0.5);
    transition: all var(--transition-base);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    z-index: 1001;
}

.logo-img {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

.logo-icon {
    width: 40px;
    height: 40px;
}

.logo-icon svg {
    width: 40%;
    height: 40%;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Navigation Menu */
.nav-menu {
    display: none;
    gap: var(--space-8);
}

.nav-link {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--charcoal-dark);
    position: relative;
    padding: var(--space-2) 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-link:hover {
    color: var(--flow-purple);
}

/* Navigation Buttons */
.nav-buttons {
    display: none;
    align-items: center;
    gap: var(--space-3);
}

/* Mobile Menu Toggle */
.nav-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    z-index: 1001;
}

.hamburger {
    position: relative;
    width: 24px;
    height: 2px;
    background: var(--charcoal-dark);
    transition: all var(--transition-base);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
    width: 24px;
    height: 2px;
    background: var(--charcoal-dark);
    transition: all var(--transition-base);
}

.hamburger::before {
    top: -8px;
}

.hamburger::after {
    bottom: -8px;
}

/* Mobile Menu Open State */
.nav-toggle.active .hamburger {
    background: transparent;
}

.nav-toggle.active .hamburger::before {
    top: 0;
    transform: rotate(45deg);
}

.nav-toggle.active .hamburger::after {
    bottom: 0;
    transform: rotate(-45deg);
}

/* Mobile Menu Styles */
.nav-menu.active {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--white);
    padding: var(--space-8) var(--space-4) var(--space-4) var(--space-4);
    gap: var(--space-4);
    animation: slideIn var(--transition-base) ease;
    z-index: 999;
    min-height: calc(100vh - var(--header-height));
    max-height: none;
    overflow-y: visible;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.nav-menu.active .nav-link {
    font-size: var(--text-lg);
    padding: var(--space-4) var(--space-2);
    border-bottom: 1px solid var(--neutral-gray);
    display: block;
    color: var(--charcoal-dark);
}

.nav-menu.active .nav-link:hover {
    color: var(--flow-purple);
    background: rgba(123, 93, 250, 0.05);
    border-radius: var(--radius-md);
}

.nav-menu.active li {
    width: 100%;
}


.nav-buttons.mobile-visible {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    margin-top: var(--space-4);
    padding-top: var(--space-4);
    border-top: 1px solid var(--neutral-gray);
    width: 100%;
    box-sizing: border-box;
    background: transparent;
    position: static;
    z-index: auto;
}

.nav-buttons.mobile-visible .btn {
    width: 100%;
    justify-content: center;
    padding: var(--space-4) var(--space-6);
}

/* Desktop Navigation (768px+) */
@media (min-width: 768px) {
    .nav-menu {
        display: flex;
    }
    
    .nav-buttons {
        display: flex;
    }
    
    .nav-toggle {
        display: none;
    }
    
    .nav-menu.active {
        position: static;
        flex-direction: row-reverse;
        padding: 0;
        animation: none;
    }
    
    .nav-menu.active .nav-link {
        font-size: var(--text-sm);
        padding: var(--space-2) 0;
        border-bottom: none;
    }
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: calc(var(--header-height) + var(--space-8));
    padding-bottom: var(--space-16);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, 
        var(--soft-gray) 0%, 
        rgba(74, 144, 226, 0.05) 50%, 
        rgba(123, 93, 250, 0.08) 100%
    );
}

.hero-shapes {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.5;
}

.shape-1 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(74, 144, 226, 0.15) 0%, transparent 70%);
    top: -100px;
    right: -100px;
}

.shape-2 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(123, 93, 250, 0.15) 0%, transparent 70%);
    bottom: 20%;
    left: -100px;
}

.shape-3 {
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(166, 140, 255, 0.2) 0%, transparent 70%);
    top: 40%;
    right: 10%;
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-12);
}

/* Hero Text */
.hero-text {
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: rgba(123, 93, 250, 0.1);
    border: 1px solid rgba(123, 93, 250, 0.2);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--flow-purple);
    margin-bottom: var(--space-6);
}

.hero-badge svg {
    width: 16px;
    height: 16px;
}

.hero-title {
    font-size: var(--text-4xl);
    font-weight: var(--font-extrabold);
    line-height: 1.1;
    margin-bottom: var(--space-6);
}

.hero-subtitle {
    font-size: var(--text-lg);
    color: #666;
    max-width: 600px;
    margin: 0 auto var(--space-8);
}

.hero-ctas {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    margin-bottom: var(--space-8);
}

/* Hero Trust Indicators */
.hero-trust {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-4);
}

.trust-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: #666;
}

.trust-item svg {
    width: 18px;
    height: 18px;
    color: var(--success);
}

/* Hero Image */
.hero-image {
    position: relative;
}

.hero-image-wrapper {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.hero-screenshot {
    width: 100%;
    display: block;
}

.hero-image-glow {
    position: absolute;
    inset: -20%;
    background: radial-gradient(circle, rgba(123, 93, 250, 0.2) 0%, transparent 70%);
    z-index: -1;
}

/* Floating Cards */
.floating-card {
    display: none;
    position: absolute;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    animation: float 3s ease-in-out infinite;
}

.floating-card svg {
    width: 24px;
    height: 24px;
    color: var(--flow-purple);
}

.floating-card-content {
    display: flex;
    flex-direction: column;
}

.floating-card-value {
    font-family: var(--font-heading);
    font-size: var(--text-lg);
    font-weight: var(--font-bold);
    color: var(--charcoal-dark);
}

.floating-card-label {
    font-size: var(--text-xs);
    color: #666;
}

.floating-card-1 {
    top: 10%;
    left: -5%;
    animation-delay: 0s;
}

.floating-card-2 {
    top: 50%;
    right: -5%;
    animation-delay: 1s;
}

.floating-card-3 {
    bottom: 10%;
    left: 10%;
    animation-delay: 2s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* Scroll Indicator */
.scroll-indicator {
    display: none;
    position: absolute;
    bottom: var(--space-8);
    left: 50%;
    transform: translateX(-50%);
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    color: #666;
    font-size: var(--text-sm);
    animation: bounce 2s infinite;
}

.mouse {
    width: 24px;
    height: 40px;
    border: 2px solid var(--neutral-gray);
    border-radius: var(--radius-full);
    position: relative;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--flow-purple);
    border-radius: var(--radius-full);
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

@keyframes scroll {
    0% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(12px);
    }
}

/* Hero Desktop Styles */
@media (min-width: 768px) {
    .hero-title {
        font-size: var(--text-4xl);
    }
    
    .hero-ctas {
        flex-direction: row;
        justify-content: center;
    }
    
    .floating-card {
        display: flex;
    }
    
    .scroll-indicator {
        display: flex;
    }
}

@media (min-width: 1024px) {
    .hero {
        padding-top: var(--header-height);
    }
    
    .hero-content {
        flex-direction: row;
        align-items: center;
        gap: var(--space-16);
    }
    
    .hero-text {
        flex: 1;
        text-align: left;
    }
    
    .hero-title {
        font-size: var(--text-5xl);
    }
    
    .hero-subtitle {
        margin-left: 0;
    }
    
    .hero-ctas {
        justify-content: flex-start;
    }
    
    .hero-trust {
        justify-content: flex-start;
    }
    
    .hero-image {
        flex: 1.2;
    }
}

/* ========================================
   SECTION STYLING
   ======================================== */
section {
    padding: var(--space-16) 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-12);
}

.section-label {
    display: inline-block;
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--flow-purple);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: var(--space-3);
}

.section-title {
    font-size: var(--text-2xl);
    margin-bottom: var(--space-4);
}

.section-subtitle {
    font-size: var(--text-base);
    color: #666;
}

@media (min-width: 768px) {
    section {
        padding: var(--space-24) 0;
    }
    
    .section-title {
        font-size: var(--text-4xl);
    }
    
    .section-subtitle {
        font-size: var(--text-lg);
    }
}

/* ========================================
   PROBLEMS SECTION
   ======================================== */
.problems {
    background: var(--soft-gray);
}

.problems-grid {
    display: grid;
    gap: var(--space-6);
}

.problem-card {
    background: var(--white);
    padding: var(--space-6);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    transition: all var(--transition-base);
    border-left: 4px solid transparent;
}

.problem-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-left-color: var(--error);
}

.problem-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(228, 84, 84, 0.1);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
}

.problem-icon svg {
    width: 28px;
    height: 28px;
    color: var(--error);
}

.problem-title {
    font-size: var(--text-lg);
    margin-bottom: var(--space-2);
}

.problem-description {
    font-size: var(--text-sm);
    color: #666;
    line-height: 1.6;
}

.problems-cta {
    text-align: center;
    margin-top: var(--space-12);
}

.problems-cta p {
    font-size: var(--text-lg);
    color: #666;
    margin-bottom: var(--space-4);
}

@media (min-width: 768px) {
    .problems-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .problems-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ========================================
   FEATURES SECTION
   ======================================== */
.features-grid {
    display: grid;
    gap: var(--space-6);
}

.feature-card {
    background: var(--white);
    padding: var(--space-6);
    border-radius: var(--radius-lg);
    border: 1px solid var(--neutral-gray);
    transition: all var(--transition-base);
    position: relative;
}

.feature-card::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: var(--radius-lg);
    background: var(--gradient-primary);
    opacity: 0;
    z-index: -1;
    transition: opacity var(--transition-base);
}

.feature-card:hover {
    border-color: transparent;
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
}

.feature-icon svg {
    width: 28px;
    height: 28px;
    color: var(--white);
}

.feature-title {
    font-size: var(--text-lg);
    margin-bottom: var(--space-2);
}

.feature-description {
    font-size: var(--text-sm);
    color: #666;
    line-height: 1.6;
    margin-bottom: var(--space-4);
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: #666;
}

.feature-list svg {
    width: 16px;
    height: 16px;
    color: var(--success);
}

.features-highlight {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-4);
    margin-top: var(--space-8);
    padding: var(--space-6);
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    color: var(--white);
    text-align: center;
}

.highlight-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
}

.highlight-icon svg {
    width: 32px;
    height: 32px;
}

.highlight-content h3 {
    font-size: var(--text-xl);
    color: var(--white);
    margin-bottom: var(--space-2);
}

.highlight-content p {
    font-size: var(--text-sm);
    opacity: 0.9;
}

@media (min-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .features-highlight {
        flex-direction: row;
        text-align: left;
        justify-content: space-between;
    }
    
    .highlight-content {
        flex: 1;
    }
}

@media (min-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ========================================
   DEMO SECTION
   ======================================== */
.demo {
    background: var(--soft-gray);
}

.demo-showcase {
    max-width: 1000px;
    margin: 0 auto;
}

.demo-nav {
    display: flex;
    justify-content: center;
    gap: var(--space-2);
    margin-bottom: var(--space-8);
    flex-wrap: wrap;
}

.demo-nav-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    background: var(--white);
    border: 2px solid var(--neutral-gray);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: #666;
    transition: all var(--transition-base);
}

.demo-nav-btn svg {
    width: 18px;
    height: 18px;
}

.demo-nav-btn:hover {
    border-color: var(--identy-blue);
    color: var(--identy-blue);
}

.demo-nav-btn.active {
    background: var(--gradient-primary);
    border-color: transparent;
    color: var(--white);
}

.demo-content {
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
}

.demo-slide {
    display: none;
    flex-direction: column;
}

.demo-slide.active {
    display: flex;
}

.demo-image-wrapper {
    padding: var(--space-4);
    background: var(--soft-gray);
}

.demo-image-wrapper.demo-mobile {
    display: flex;
    justify-content: center;
    padding: var(--space-8);
}

.demo-image-wrapper.demo-mobile .demo-image {
    max-width: 280px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.demo-image {
    width: 100%;
    border-radius: var(--radius-lg);
}

.demo-info {
    padding: var(--space-6);
}

.demo-info h3 {
    font-size: var(--text-xl);
    margin-bottom: var(--space-3);
}

.demo-info p {
    font-size: var(--text-sm);
    color: #666;
    margin-bottom: var(--space-4);
}

.demo-features {
    display: grid;
    gap: var(--space-3);
}

.demo-features li {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
}

.demo-features svg {
    width: 18px;
    height: 18px;
    color: var(--success);
}

@media (min-width: 768px) {
    .demo-slide {
        flex-direction: row;
    }
    
    .demo-image-wrapper {
        flex: 1.2;
        padding: var(--space-6);
    }
    
    .demo-info {
        flex: 1;
        display: flex;
        flex-direction: column;
        justify-content: center;
    }
    
    .demo-features {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ========================================
   ROI SECTION
   ======================================== */
.roi-calculator {
    display: flex;
    flex-direction: column;
    gap: var(--space-10);
}

.roi-visual {
    background: var(--white);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-card);
}

.roi-chart {
    display: flex;
    justify-content: center;
    align-items: flex-end;
    gap: var(--space-6);
    height: 250px;
    margin-bottom: var(--space-8);
    padding-bottom: var(--space-16);
}

.roi-bar {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
    max-width: 120px;
    height: 100%;
    position: relative;
}

.roi-bar-fill {
    width: 100%;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: var(--space-4);
    position: relative;
}

/* ROI Bar Heights - moved from inline styles */
.roi-bar-fill-100 {
    height: 100%;
}

.roi-bar-fill-30 {
    height: 30%;
}

.roi-bar-fill-70 {
    height: 70%;
}

.roi-course .roi-bar-fill {
    background: var(--neutral-gray);
}

.roi-system .roi-bar-fill {
    background: var(--gradient-primary);
}

.roi-profit .roi-bar-fill {
    background: var(--success);
}

.roi-bar-value {
    font-family: var(--font-heading);
    font-size: var(--text-sm);
    font-weight: var(--font-bold);
    color: var(--white);
    text-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

.roi-course .roi-bar-value {
    color: var(--charcoal-dark);
}

.roi-bar-label {
    position: absolute;
    bottom: -60px;
    font-size: var(--text-xs);
    color: #666;
    text-align: center;
    line-height: 1.3;
}

.roi-highlight {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4);
    background: rgba(54, 201, 134, 0.1);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--success);
}

.roi-highlight-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--success);
    border-radius: var(--radius-full);
    flex-shrink: 0;
}

.roi-highlight-icon svg {
    width: 24px;
    height: 24px;
    color: var(--white);
}

.roi-highlight p {
    font-size: var(--text-sm);
    color: var(--charcoal-dark);
}

.roi-benefits h3 {
    font-size: var(--text-xl);
    margin-bottom: var(--space-6);
    text-align: center;
}

.roi-benefit-item {
    display: flex;
    gap: var(--space-4);
    padding: var(--space-4);
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--space-4);
    transition: all var(--transition-base);
}

.roi-benefit-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(4px);
}

.roi-benefit-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(123, 93, 250, 0.1);
    border-radius: var(--radius-lg);
    flex-shrink: 0;
}

.roi-benefit-icon svg {
    width: 24px;
    height: 24px;
    color: var(--flow-purple);
}

.roi-benefit-content h4 {
    font-size: var(--text-base);
    margin-bottom: var(--space-1);
}

.roi-benefit-content p {
    font-size: var(--text-sm);
    color: #666;
}

.roi-quote {
    margin-top: var(--space-12);
}

.roi-quote blockquote {
    position: relative;
    padding: var(--space-8);
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    text-align: center;
}

.roi-quote p {
    font-size: var(--text-lg);
    font-style: italic;
    color: var(--white);
    line-height: 1.8;
}

@media (min-width: 768px) {
    .roi-bar-value {
        font-size: var(--text-lg);
    }
    
    .roi-bar-label {
        font-size: var(--text-sm);
    }
}

@media (min-width: 1024px) {
    .roi-calculator {
        flex-direction: row;
        align-items: flex-start;
    }
    
    .roi-visual {
        flex: 1;
    }
    
    .roi-benefits {
        flex: 1;
    }
    
    .roi-benefits h3 {
        text-align: left;
    }
}

/* ========================================
   PRICING SECTION
   ======================================== */
.pricing {
    background: var(--soft-gray);
}

.pricing-grid {
    display: grid;
    gap: var(--space-6);
    max-width: 900px;
    margin: 0 auto;
}

.pricing-card {
    position: relative;
    background: var(--white);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    border: 2px solid var(--neutral-gray);
    transition: all var(--transition-base);
}

.pricing-card:hover {
    border-color: var(--identy-blue);
    box-shadow: var(--shadow-lg);
}

.pricing-featured {
    border-color: var(--flow-purple);
    box-shadow: var(--shadow-glow);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--gradient-primary);
    color: var(--white);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    border-radius: var(--radius-full);
    white-space: nowrap;
    animation: pulse-badge 2s ease-in-out infinite;
}

@keyframes pulse-badge {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(123, 93, 250, 0.4);
    }
    50% {
        box-shadow: 0 0 0 10px rgba(123, 93, 250, 0);
    }
}

.pricing-badge svg {
    width: 16px;
    height: 16px;
}

.pricing-header {
    text-align: center;
    margin-bottom: var(--space-6);
    padding-top: var(--space-4);
}

.pricing-name {
    font-family: var(--font-heading);
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--charcoal-dark);
}

.pricing-description {
    font-size: var(--text-sm);
    color: #666;
    margin-top: var(--space-2);
}

.pricing-price {
    text-align: center;
    padding: var(--space-6) 0;
    border-top: 1px solid var(--neutral-gray);
    border-bottom: 1px solid var(--neutral-gray);
    margin-bottom: var(--space-6);
}

.pricing-original {
    font-size: var(--text-sm);
    color: #999;
    text-decoration: line-through;
}

.pricing-current {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: var(--space-1);
    margin: var(--space-2) 0;
}

.pricing-currency {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    color: var(--charcoal-dark);
}

.pricing-value {
    font-family: var(--font-heading);
    font-size: var(--text-5xl);
    font-weight: var(--font-extrabold);
    color: var(--charcoal-dark);
    line-height: 1;
}

.pricing-featured .pricing-value {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.pricing-period {
    font-size: var(--text-base);
    color: #666;
}

.pricing-promo {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    background: rgba(54, 201, 134, 0.1);
    color: var(--success);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    border-radius: var(--radius-full);
}

.pricing-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin-bottom: var(--space-8);
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-sm);
}

.pricing-features svg {
    width: 18px;
    height: 18px;
    color: var(--success);
    flex-shrink: 0;
}

.pricing-guarantee {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    max-width: 600px;
    margin: var(--space-12) auto 0;
    padding: var(--space-6);
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-card);
}

.guarantee-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(54, 201, 134, 0.1);
    border-radius: var(--radius-full);
    flex-shrink: 0;
}

.guarantee-icon svg {
    width: 28px;
    height: 28px;
    color: var(--success);
}

.guarantee-content h4 {
    font-size: var(--text-lg);
    margin-bottom: var(--space-2);
}

.guarantee-content p {
    font-size: var(--text-sm);
    color: #666;
}

@media (min-width: 768px) {
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
        align-items: start;
    }
    
    .pricing-featured {
        transform: scale(1.05);
    }
}

/* ========================================
   HOW IT WORKS SECTION
   ======================================== */
.steps-timeline {
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
    max-width: 800px;
    margin: 0 auto;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: var(--white);
    font-family: var(--font-heading);
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-4);
    position: relative;
    z-index: 1;
}

.step-connector {
    display: none;
}

.step-content {
    background: var(--white);
    padding: var(--space-6);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-card);
}

.step-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(123, 93, 250, 0.1);
    border-radius: var(--radius-lg);
    margin: 0 auto var(--space-4);
}

.step-icon svg {
    width: 28px;
    height: 28px;
    color: var(--flow-purple);
}

.step-title {
    font-size: var(--text-lg);
    margin-bottom: var(--space-2);
}

.step-description {
    font-size: var(--text-sm);
    color: #666;
}

.steps-cta {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
    margin-top: var(--space-12);
}

.steps-cta-note {
    font-size: var(--text-sm);
    color: #666;
}

@media (min-width: 768px) {
    .steps-timeline {
        flex-direction: row;
        align-items: flex-start;
        gap: var(--space-6);
    }
    
    .step {
        flex: 1;
    }
    
    .step-connector {
        display: block;
        position: absolute;
        top: 30px;
        left: calc(50% + 40px);
        width: calc(100% - 60px);
        height: 3px;
        background: var(--neutral-gray);
    }
    
    .step:last-child .step-connector {
        display: none;
    }
}

/* ========================================
   FAQ SECTION
   ======================================== */
.faq {
    background: var(--soft-gray);
}

.faq-grid {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: all var(--transition-base);
}

.faq-item:hover {
    box-shadow: var(--shadow-md);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: var(--space-5) var(--space-6);
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    text-align: left;
    color: var(--charcoal-dark);
    transition: all var(--transition-base);
}

.faq-question svg {
    width: 20px;
    height: 20px;
    color: var(--flow-purple);
    transition: transform var(--transition-base);
    flex-shrink: 0;
    margin-left: var(--space-4);
}

.faq-question:hover {
    color: var(--flow-purple);
}

.faq-item.active .faq-question svg {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
}

.faq-item.active .faq-answer {
    max-height: 300px;
}

.faq-answer p {
    padding: 0 var(--space-6) var(--space-6);
    font-size: var(--text-sm);
    color: #666;
    line-height: 1.8;
}

.faq-contact {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-4);
    margin-top: var(--space-12);
    text-align: center;
}

.faq-contact p {
    font-size: var(--text-lg);
    color: #666;
}

/* ========================================
   CTA FINAL SECTION
   ======================================== */
.cta-final {
    position: relative;
    padding: var(--space-20) 0;
    overflow: hidden;
}

.cta-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.cta-gradient {
    position: absolute;
    inset: 0;
    background: var(--gradient-cta);
}

.cta-shapes {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.cta-shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.1;
}

.cta-shape-1 {
    width: 500px;
    height: 500px;
    background: var(--white);
    top: -200px;
    right: -200px;
}

.cta-shape-2 {
    width: 400px;
    height: 400px;
    background: var(--white);
    bottom: -200px;
    left: -100px;
}

.cta-content {
    text-align: center;
    color: var(--white);
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    font-size: var(--text-2xl);
    color: var(--white);
    margin-bottom: var(--space-4);
}

.cta-title span {
    display: block;
}

.cta-subtitle {
    font-size: var(--text-lg);
    opacity: 0.9;
    margin-bottom: var(--space-8);
}

.cta-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    margin-bottom: var(--space-10);
}

.cta-trust {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-6);
}

.cta-trust-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    opacity: 0.9;
}

.cta-trust-item svg {
    width: 18px;
    height: 18px;
}

@media (min-width: 768px) {
    .cta-title {
        font-size: var(--text-4xl);
    }
    
    .cta-buttons {
        flex-direction: row;
        justify-content: center;
    }
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    background: var(--deep-tech-blue);
    color: var(--white);
    padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
    display: grid;
    gap: var(--space-10);
    margin-bottom: var(--space-12);
}

.footer-brand .logo {
    margin-bottom: var(--space-4);
}

.footer-brand .logo-img {
    width: 36px;
    height: 36px;
    filter: brightness(0) invert(1);
}

.footer-brand .logo-text {
    color: var(--white);
    background: none;
    -webkit-text-fill-color: var(--white);
}

.footer-description {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--space-6);
    line-height: 1.7;
}

.footer-social {
    display: flex;
    gap: var(--space-3);
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

.social-link:hover {
    background: var(--flow-purple);
    transform: translateY(-2px);
}

.footer-links h4,
.footer-contact h4 {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-4);
    color: var(--white);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-links a {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--white);
}

.footer-contact ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.7);
}

.footer-contact svg {
    width: 18px;
    height: 18px;
    color: var(--flow-purple);
}

.footer-contact a:hover {
    color: var(--white);
}

.footer-bottom {
    padding-top: var(--space-8);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: var(--space-2);
}

.footer-bottom p:last-child {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-1);
}

.footer-bottom svg {
    width: 14px;
    height: 14px;
    color: var(--error);
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr;
    }
}

/* ========================================
   BACK TO TOP BUTTON
   ======================================== */
.back-to-top {
    position: fixed;
    bottom: var(--space-6);
    right: var(--space-6);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-base);
    z-index: 999;
}

.back-to-top svg {
    width: 24px;
    height: 24px;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

/* ========================================
   REVEAL ANIMATIONS
   ======================================== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered animations for grid items */
.problems-grid .reveal:nth-child(1) { transition-delay: 0.1s; }
.problems-grid .reveal:nth-child(2) { transition-delay: 0.2s; }
.problems-grid .reveal:nth-child(3) { transition-delay: 0.3s; }
.problems-grid .reveal:nth-child(4) { transition-delay: 0.4s; }
.problems-grid .reveal:nth-child(5) { transition-delay: 0.5s; }
.problems-grid .reveal:nth-child(6) { transition-delay: 0.6s; }

.features-grid .reveal:nth-child(1) { transition-delay: 0.1s; }
.features-grid .reveal:nth-child(2) { transition-delay: 0.15s; }
.features-grid .reveal:nth-child(3) { transition-delay: 0.2s; }
.features-grid .reveal:nth-child(4) { transition-delay: 0.25s; }
.features-grid .reveal:nth-child(5) { transition-delay: 0.3s; }
.features-grid .reveal:nth-child(6) { transition-delay: 0.35s; }

.steps-timeline .reveal:nth-child(1) { transition-delay: 0.1s; }
.steps-timeline .reveal:nth-child(2) { transition-delay: 0.3s; }
.steps-timeline .reveal:nth-child(3) { transition-delay: 0.5s; }

/* ========================================
   ACCESSIBILITY
   ======================================== */
:focus-visible {
    outline: 2px solid var(--flow-purple);
    outline-offset: 2px;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
    
    .reveal {
        opacity: 1;
        transform: none;
    }
}

/* ========================================
   PRINT STYLES
   ======================================== */
@media print {
    .header,
    .back-to-top,
    .scroll-indicator,
    .floating-card {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
        color: #000;
        background: #fff;
    }
    
    .hero {
        min-height: initial;
        padding: 2rem 0;
    }
    
    section {
        padding: 2rem 0;
        page-break-inside: avoid;
    }
}