/* =========================================
   KORTANA PROJECT - STYLES
   =========================================
   1. CSS Variables & Reset
   2. Utility Classes
   3. Header & Navigation
   4. Hero Section
   5. Statistics Section
   6. Value Proposition
   7. Services Section
   8. Process/Timeline Section
   9. Why Choose Us Section
   10. CTA Section
   11. Contact Section
   12. Footer
   13. Chatbot Widget
   14. Animations
   15. Media Queries
   ========================================= */

/* =========================================
   1. CSS Variables & Reset
   ========================================= */
:root {
    /* Colors */
    --color-primary: #00C2FF;
    --color-secondary: #9D00FF;
    --color-background: #0A0A0B;
    --color-background-light: #121214;
    --color-background-card: rgba(255, 255, 255, 0.03);
    --color-text: #FFFFFF;
    --color-text-muted: rgba(255, 255, 255, 0.6);
    --color-text-subtle: rgba(255, 255, 255, 0.4);
    --color-border: rgba(255, 255, 255, 0.1);
    --color-success: #00D97E;
    --color-error: #FF4757;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    --gradient-text: linear-gradient(90deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    --gradient-glow: radial-gradient(circle at center, rgba(0, 194, 255, 0.15) 0%, transparent 70%);

    /* Glass Effect */
    --glass-background: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-blur: 20px;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3.5rem;
    --font-size-6xl: 4.5rem;

    /* 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;

    /* Layout */
    --container-max: 1200px;
    --header-height: 80px;
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 16px;
    --border-radius-xl: 24px;
    --border-radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(0, 194, 255, 0.3);
}

/* Reset */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-background);
    overflow-x: hidden;
}

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

a {
    color: inherit;
    text-decoration: none;
}

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

ul,
ol {
    list-style: none;
}

input,
textarea {
    font-family: inherit;
    font-size: inherit;
}

/* =========================================
   2. Utility Classes
   ========================================= */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-6);
}

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

.glass-card {
    background: var(--glass-background);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-16);
}

.section-label {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-primary);
    margin-bottom: var(--space-4);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--space-4);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-muted);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-8);
    font-size: var(--font-size-base);
    font-weight: 600;
    border-radius: var(--border-radius-full);
    transition: all var(--transition-base);
    cursor: pointer;
    white-space: nowrap;
}

.btn__icon {
    width: 20px;
    height: 20px;
}

.btn--primary {
    background: var(--gradient-primary);
    color: var(--color-text);
    box-shadow: 0 4px 20px rgba(0, 194, 255, 0.3);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(0, 194, 255, 0.4);
}

.btn--primary:active {
    transform: translateY(0);
}

.btn--secondary {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn--secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--color-primary);
}

.btn--ghost {
    background: transparent;
    color: var(--color-text-muted);
    padding: var(--space-3) var(--space-6);
}

.btn--ghost:hover {
    color: var(--color-text);
}

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

.btn--large {
    padding: var(--space-5) var(--space-10);
    font-size: var(--font-size-lg);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* =========================================
   3. Header & Navigation
   ========================================= */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    z-index: 1000;
    transition: all var(--transition-base);
}

.header.scrolled {
    background: rgba(10, 10, 11, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
}

.header__container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

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

.nav-logo {
    height: 45px;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 0 5px rgba(0, 194, 255, 0.3));
}

.logo-text {
    font-size: var(--font-size-xl);
    font-weight: 700;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header__nav {
    display: flex;
    align-items: center;
}

.nav__list {
    display: flex;
    gap: var(--space-8);
}

.nav__link {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-muted);
    transition: color var(--transition-fast);
    position: relative;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
}

.nav__link:hover,
.nav__link.active {
    color: var(--color-text);
}

.nav__link:hover::after,
.nav__link.active::after {
    width: 100%;
}

.header__hamburger {
    display: none;
    flex-direction: column;
    gap: 6px;
    padding: var(--space-2);
    z-index: 1101;
    position: relative;
}

.hamburger__line {
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: all var(--transition-base);
    transform-origin: center;
}

.header__hamburger.active .hamburger__line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
}

.header__hamburger.active .hamburger__line:nth-child(2) {
    opacity: 0;
}

.header__hamburger.active .hamburger__line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
}

/* =========================================
   4. Hero Section
   ========================================= */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding-top: var(--header-height);
}

.hero__particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at center, transparent 0%, var(--color-background) 70%);
    z-index: 1;
}

.hero__container {
    position: relative;
    z-index: 2;
    text-align: center;
}

.hero__content {
    max-width: 900px;
    margin: 0 auto;
}

.hero__title {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--space-6);
}

.hero__subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-text-muted);
    max-width: 700px;
    margin: 0 auto var(--space-10);
    line-height: 1.7;
}

.hero__cta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    justify-content: center;
}

.hero__scroll-indicator {
    position: absolute;
    bottom: var(--space-10);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
    color: var(--color-text-muted);
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    z-index: 2;
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--color-primary), transparent);
    animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
    0% {
        transform: scaleY(0);
        transform-origin: top;
    }
    45% {
        transform: scaleY(1);
        transform-origin: top;
    }
    55% {
        transform: scaleY(1);
        transform-origin: bottom;
    }
    100% {
        transform: scaleY(0);
        transform-origin: bottom;
    }
}

/* =========================================
   5. Statistics Section
   ========================================= */
.stats {
    padding: var(--space-20) 0;
    background: var(--color-background-light);
    position: relative;
}

.stats::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-border), transparent);
}

.stats__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-8);
}

.stat {
    text-align: center;
    padding: var(--space-6);
}

.stat__number {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.stat__suffix {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat__label {
    margin-top: var(--space-3);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* =========================================
   6. Value Proposition
   ========================================= */
.value-prop {
    padding: var(--space-24) 0;
}

.value-prop__content {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--space-12);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.value-prop__content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 200%;
    height: 200%;
    background: var(--gradient-glow);
    opacity: 0.5;
    pointer-events: none;
}

.value-prop__title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--space-6);
    position: relative;
}

.value-prop__text {
    font-size: var(--font-size-lg);
    color: var(--color-text-muted);
    line-height: 1.8;
    position: relative;
}

.value-prop__text strong {
    color: var(--color-text);
}

/* =========================================
   7. Services Section
   ========================================= */
.services {
    padding: var(--space-24) 0;
    background: var(--color-background-light);
}

.services__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
}

.service-card {
    padding: var(--space-10);
    position: relative;
    overflow: hidden;
    transition: all var(--transition-base);
    transform-style: preserve-3d;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.service-card--coming-soon {
    opacity: 0.7;
}

.service-card__badge {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    padding: var(--space-1) var(--space-3);
    font-size: var(--font-size-xs);
    font-weight: 600;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-full);
}

.service-card__icon {
    width: 64px;
    height: 64px;
    margin-bottom: var(--space-6);
}

.service-card__icon svg {
    width: 100%;
    height: 100%;
}

.service-card__title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--space-4);
}

.service-card__description {
    font-size: var(--font-size-base);
    color: var(--color-text-muted);
    line-height: 1.7;
    margin-bottom: var(--space-6);
}

.service-card__link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-primary);
    transition: gap var(--transition-fast);
}

.service-card__link svg {
    width: 16px;
    height: 16px;
    transition: transform var(--transition-fast);
}

.service-card__link:hover {
    gap: var(--space-3);
}

.service-card__link:hover svg {
    transform: translateX(4px);
}

.service-card__link--disabled {
    color: var(--color-text-muted);
    cursor: not-allowed;
}

.service-card__link--disabled:hover {
    gap: var(--space-2);
}

.service-card__link--disabled:hover svg {
    transform: none;
}

/* =========================================
   8. Process/Timeline Section
   ========================================= */
.process {
    padding: var(--space-24) 0;
}

.timeline {
    position: relative;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-8) var(--space-6);
    padding-top: var(--space-12);
}

.timeline__line {
    display: none;
    position: absolute;
}

.timeline__item {
    position: relative;
    text-align: center;
}

.timeline__item::before {
    content: '';
    position: absolute;
    top: 28px;
    left: 50%;
    right: -50%;
    height: 2px;
    background: var(--color-border);
    z-index: 0;
}

.timeline__item:nth-of-type(4)::before,
.timeline__item:nth-of-type(8)::before {
    display: none;
}

.timeline.animated .timeline__item::before {
    background: var(--gradient-primary);
    transition: background 1s ease;
}

.timeline__number {
    width: 56px;
    height: 56px;
    margin: 0 auto var(--space-6);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-lg);
    font-weight: 700;
    background: var(--color-background);
    border: 2px solid var(--color-border);
    border-radius: 50%;
    position: relative;
    z-index: 1;
    transition: all var(--transition-base);
}

.timeline__item.active .timeline__number {
    background: var(--gradient-primary);
    border-color: transparent;
    box-shadow: var(--shadow-glow);
}

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

.timeline__title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--space-2);
}

.timeline__description {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* =========================================
   9. Why Choose Us Section
   ========================================= */
.why-us {
    padding: var(--space-24) 0;
    background: var(--color-background-light);
}

.why-us__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-8);
}

.feature-card {
    padding: var(--space-8);
    display: flex;
    gap: var(--space-6);
    transition: all var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-primary);
}

.feature-card__icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
}

.feature-card__icon svg {
    width: 100%;
    height: 100%;
}

.feature-card__title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--space-2);
}

.feature-card__description {
    font-size: var(--font-size-base);
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* =========================================
   10. CTA Section
   ========================================= */
.cta-section {
    padding: var(--space-24) 0;
}

.cta-box {
    padding: var(--space-16);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-box::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 150%;
    height: 150%;
    background: var(--gradient-glow);
    opacity: 0.3;
    pointer-events: none;
}

.cta-box__title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--space-4);
    position: relative;
}

.cta-box__text {
    font-size: var(--font-size-lg);
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto var(--space-8);
    position: relative;
}

/* =========================================
   11. Contact Section
   ========================================= */
.contact {
    padding: var(--space-24) 0;
    background: var(--color-background-light);
}

.contact__wrapper {
    max-width: 600px;
    margin: 0 auto;
    padding: var(--space-10);
}

/* Progress Bar */
.form-progress {
    margin-bottom: var(--space-10);
}

.form-progress__bar {
    height: 4px;
    background: var(--color-border);
    border-radius: var(--border-radius-full);
    overflow: hidden;
    margin-bottom: var(--space-6);
}

.form-progress__fill {
    height: 100%;
    width: 25%;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-full);
    transition: width var(--transition-base);
}

.form-progress__steps {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--space-4);
}

.form-progress__step {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
    font-weight: 600;
    background: var(--color-background);
    border: 2px solid var(--color-border);
    border-radius: 50%;
    transition: all var(--transition-base);
}

.form-progress__step.active {
    background: var(--gradient-primary);
    border-color: transparent;
}

.form-progress__step.completed {
    background: var(--color-primary);
    border-color: transparent;
}

.form-progress__label {
    text-align: center;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* Form Steps */
.form-step {
    display: none;
}

.form-step.active {
    display: block;
    animation: fadeIn var(--transition-base);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.form-step__title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--space-6);
    text-align: center;
}

/* Radio Cards */
.radio-group {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
}

.radio-card {
    cursor: pointer;
}

.radio-card input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.radio-card__content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-6);
    background: var(--color-background);
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius-md);
    transition: all var(--transition-base);
    text-align: center;
}

.radio-card__content svg {
    width: 32px;
    height: 32px;
    color: var(--color-text-muted);
    transition: color var(--transition-base);
}

.radio-card__content span {
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.radio-card input:checked + .radio-card__content {
    border-color: var(--color-primary);
    background: rgba(0, 194, 255, 0.1);
}

.radio-card input:checked + .radio-card__content svg {
    color: var(--color-primary);
}

.radio-card:hover .radio-card__content {
    border-color: var(--color-text-muted);
}

/* Form Groups */
.form-group {
    margin-bottom: var(--space-6);
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-bottom: var(--space-2);
}

.form-optional {
    color: var(--color-text-muted);
    font-weight: 400;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: var(--space-4);
    font-size: var(--font-size-base);
    color: var(--color-text);
    background: var(--color-background);
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius-md);
    transition: all var(--transition-base);
    outline: none;
}

.form-input:focus,
.form-textarea:focus {
    border-color: var(--color-primary);
}

.form-input.valid,
.form-textarea.valid {
    border-color: var(--color-success);
}

.form-input.invalid,
.form-textarea.invalid {
    border-color: var(--color-error);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.form-error {
    display: none;
    margin-top: var(--space-2);
    font-size: var(--font-size-sm);
    color: var(--color-error);
}

.form-group.error .form-error {
    display: block;
}

/* Form Navigation */
.form-nav {
    display: flex;
    justify-content: space-between;
    margin-top: var(--space-8);
}

/* Form Success */
.form-success {
    display: none;
    text-align: center;
    padding: var(--space-10);
}

.form-success.active {
    display: block;
    animation: scaleIn var(--transition-slow);
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.form-success__icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-6);
}

.form-success__icon svg {
    width: 100%;
    height: 100%;
}

.form-success__title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--space-3);
}

.form-success__text {
    font-size: var(--font-size-base);
    color: var(--color-text-muted);
}

/* =========================================
   12. Footer
   ========================================= */
.footer {
    padding: var(--space-16) 0 var(--space-8);
    background: var(--color-background);
    border-top: 1px solid var(--color-border);
}

.footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--space-12);
    margin-bottom: var(--space-12);
}

.footer__logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

.footer__tagline {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.footer__nav-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-4);
}

.footer__nav-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer__nav-list a {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    transition: color var(--transition-fast);
}

.footer__nav-list a:hover {
    color: var(--color-text);
}

.footer__social-links {
    display: flex;
    gap: var(--space-4);
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-background);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    color: var(--color-text-muted);
    transition: all var(--transition-base);
}

.social-link svg {
    width: 18px;
    height: 18px;
}

.social-link:hover {
    color: var(--color-text);
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

.footer__bottom {
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-border);
    text-align: center;
}

.footer__bottom p {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* =========================================
   13. Chatbot Widget
   ========================================= */
.chatbot {
    position: fixed;
    bottom: var(--space-6);
    right: var(--space-6);
    z-index: 1000;
}

.chatbot__toggle {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: 50%;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    position: relative;
}

.chatbot__toggle:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-glow);
}

.chatbot__icon {
    width: 28px;
    height: 28px;
    color: var(--color-text);
    transition: all var(--transition-base);
}

.chatbot__icon--close {
    position: absolute;
    opacity: 0;
    transform: scale(0.5) rotate(-90deg);
}

.chatbot.open .chatbot__icon--chat {
    opacity: 0;
    transform: scale(0.5) rotate(90deg);
}

.chatbot.open .chatbot__icon--close {
    opacity: 1;
    transform: scale(1) rotate(0);
}

.chatbot__pulse {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: var(--gradient-primary);
    animation: pulse 2s infinite;
    z-index: -1;
}

.chatbot.open .chatbot__pulse {
    animation: none;
    opacity: 0;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 0.5;
    }
    50% {
        transform: scale(1.3);
        opacity: 0;
    }
    100% {
        transform: scale(1);
        opacity: 0;
    }
}

.chatbot__window {
    position: fixed;
    bottom: 90px;
    right: var(--space-6);
    width: 360px;
    max-width: calc(100vw - 48px);
    max-height: 480px;
    display: flex;
    flex-direction: column;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px) scale(0.95);
    transition: all var(--transition-base);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.chatbot.open .chatbot__window {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.chatbot__header {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4) var(--space-5);
    background: var(--gradient-primary);
    border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
}

.chatbot__avatar {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
}

.chatbot__avatar svg {
    width: 100%;
    height: 100%;
}

.chatbot__name {
    font-size: var(--font-size-base);
    font-weight: 600;
}

.chatbot__status {
    font-size: var(--font-size-xs);
    opacity: 0.8;
}

.chatbot__messages {
    flex: 1;
    padding: var(--space-5);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    min-height: 200px;
    max-height: 280px;
}

.chat-message {
    display: flex;
    gap: var(--space-3);
    animation: messageIn var(--transition-base);
}

@keyframes messageIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.chat-message__avatar {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
}

.chat-message__content {
    background: var(--color-background);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-sm);
    line-height: 1.5;
    max-width: 80%;
}

.chatbot__options {
    padding: var(--space-4) var(--space-5);
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    border-top: 1px solid var(--color-border);
}

.chat-option {
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-primary);
    background: rgba(0, 194, 255, 0.1);
    border: 1px solid var(--color-primary);
    border-radius: var(--border-radius-full);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.chat-option:hover {
    background: var(--color-primary);
    color: var(--color-background);
}

/* =========================================
   14. Service Modals
   ========================================= */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal__overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.modal__content {
    position: relative;
    width: 90%;
    max-width: 700px;
    max-height: 85vh;
    overflow-y: auto;
    padding: var(--space-10);
    transform: translateY(30px) scale(0.95);
    transition: transform var(--transition-base);
    z-index: 1;
}

.modal.active .modal__content {
    transform: translateY(0) scale(1);
}

.modal__content::-webkit-scrollbar {
    width: 6px;
}

.modal__content::-webkit-scrollbar-track {
    background: transparent;
}

.modal__content::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 3px;
}

.modal__close {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: 50%;
    transition: all var(--transition-fast);
    z-index: 2;
}

.modal__close svg {
    width: 20px;
    height: 20px;
}

.modal__close:hover {
    color: var(--color-text);
    border-color: var(--color-primary);
    transform: rotate(90deg);
}

.modal__header {
    text-align: center;
    margin-bottom: var(--space-8);
    position: relative;
}

.modal__icon {
    width: 72px;
    height: 72px;
    margin: 0 auto var(--space-4);
}

.modal__icon svg {
    width: 100%;
    height: 100%;
}

.modal__badge {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    font-size: var(--font-size-xs);
    font-weight: 600;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-full);
    margin-bottom: var(--space-3);
}

.modal__title {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    line-height: 1.3;
}

.modal__body {
    margin-bottom: var(--space-8);
}

.modal__description {
    font-size: var(--font-size-base);
    color: var(--color-text-muted);
    line-height: 1.8;
    margin-bottom: var(--space-8);
    text-align: center;
}

.modal__subtitle {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--space-6);
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: var(--font-size-sm);
}

.modal__features {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
    margin-bottom: var(--space-8);
}

.modal__features li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
}

.modal__features li svg {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
    color: var(--color-primary);
    margin-top: 2px;
}

.modal__features li div {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    line-height: 1.6;
}

.modal__features li strong {
    color: var(--color-text);
}

.modal__benefits {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
    padding: var(--space-6);
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
}

.modal__benefit {
    text-align: center;
}

.modal__benefit-number {
    display: block;
    font-size: var(--font-size-2xl);
    font-weight: 800;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
    margin-bottom: var(--space-1);
}

.modal__benefit-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    line-height: 1.4;
}

.modal__footer {
    text-align: center;
}

.modal__cta {
    width: 100%;
    max-width: 400px;
}

/* =========================================
   15. Animations
   ========================================= */
[data-reveal] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-reveal].revealed {
    opacity: 1;
    transform: translateY(0);
}

/* =========================================
   15. Media Queries
   ========================================= */

/* Large Desktop: >1200px - Default styles */

/* Tablet: 768px - 1200px */
@media (max-width: 1200px) {
    :root {
        --font-size-5xl: 3rem;
        --font-size-4xl: 2.25rem;
        --font-size-3xl: 1.75rem;
    }

    .services__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .services__grid .service-card:last-child {
        grid-column: span 2;
        max-width: 50%;
        justify-self: center;
    }

    .timeline {
        grid-template-columns: repeat(4, 1fr);
    }

    .timeline__item:nth-child(n+5) {
        margin-top: var(--space-8);
    }
}

/* Mobile: <768px */
@media (max-width: 768px) {
    :root {
        --font-size-5xl: 2.5rem;
        --font-size-4xl: 2rem;
        --font-size-3xl: 1.5rem;
        --header-height: 70px;
    }

    .header__hamburger {
        display: flex;
    }

    .header__nav {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(10, 10, 11, 0.98);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
        z-index: 1100;
    }

    .header__nav.open {
        opacity: 1;
        visibility: visible;
    }

    .nav__list {
        flex-direction: column;
        align-items: center;
        gap: var(--space-5);
        padding: var(--space-4) 0;
    }

    .nav__link {
        font-size: var(--font-size-lg);
        padding: var(--space-2) 0;
    }

    .hero__title {
        font-size: var(--font-size-4xl);
    }

    .hero__subtitle {
        font-size: var(--font-size-base);
    }

    .hero__cta {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 300px;
    }

    .hero__scroll-indicator {
        display: none;
    }

    .stats__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .stat__number {
        font-size: var(--font-size-4xl);
    }

    .services__grid {
        grid-template-columns: 1fr;
    }

    .services__grid .service-card:last-child {
        grid-column: auto;
        max-width: 100%;
    }

    .timeline {
        grid-template-columns: 1fr;
        gap: 0;
        padding-left: var(--space-10);
    }

    .timeline__item::before {
        display: block;
        top: 0;
        bottom: 0;
        left: -14px;
        right: auto;
        width: 2px;
        height: 100%;
    }

    .timeline__item:nth-of-type(4)::before {
        display: block;
    }

    .timeline__item:nth-of-type(8)::before {
        display: none;
    }

    .timeline__item {
        text-align: left;
        padding-bottom: var(--space-8);
    }

    .timeline__number {
        position: absolute;
        left: -38px;
        margin: 0;
        width: 48px;
        height: 48px;
        font-size: var(--font-size-base);
    }

    .why-us__grid {
        grid-template-columns: 1fr;
    }

    .feature-card {
        flex-direction: column;
        text-align: center;
    }

    .cta-box {
        padding: var(--space-10);
    }

    .radio-group {
        grid-template-columns: 1fr;
    }

    .form-nav {
        flex-direction: row;
        gap: var(--space-3);
        justify-content: space-between;
    }

    .form-nav .btn {
        flex: 1;
        padding: var(--space-3) var(--space-4);
        font-size: var(--font-size-sm);
    }

    .footer__grid {
        grid-template-columns: 1fr;
        gap: var(--space-8);
        text-align: center;
    }

    .footer__logo {
        justify-content: center;
    }

    .footer__social-links {
        justify-content: center;
    }

    .chatbot__window {
        left: 50%;
        right: auto;
        transform: translateX(-50%) translateY(20px) scale(0.95);
        width: calc(100vw - 32px);
        max-width: 380px;
    }

    .chatbot.open .chatbot__window {
        transform: translateX(-50%) translateY(0) scale(1);
    }

    .modal__content {
        width: 95%;
        padding: var(--space-6);
        max-height: 90vh;
    }

    .modal__benefits {
        grid-template-columns: 1fr;
        gap: var(--space-3);
    }

    .modal__title {
        font-size: var(--font-size-xl);
    }
}

/* Small Mobile: <480px */
@media (max-width: 480px) {
    :root {
        --font-size-5xl: 2rem;
        --font-size-4xl: 1.75rem;
        --space-24: 4rem;
        --space-20: 3rem;
        --space-16: 2.5rem;
    }

    .container {
        padding: 0 var(--space-4);
    }

    .stats__grid {
        grid-template-columns: 1fr;
    }

    .value-prop__content,
    .contact__wrapper {
        padding: var(--space-5);
    }

    .form-nav {
        margin-top: var(--space-5);
    }

    .service-card {
        padding: var(--space-6);
    }

    .chatbot {
        bottom: var(--space-4);
        right: var(--space-4);
    }

    .chatbot__toggle {
        width: 56px;
        height: 56px;
    }

    .chatbot__window {
        bottom: 70px;
        width: calc(100vw - 24px);
        max-width: 360px;
    }
}

/* 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;
    }

    [data-reveal] {
        opacity: 1;
        transform: none;
    }
}