/* ===================================
   GRAFITTO - Premium Landing Page
   Inspired by Reflect.app
   =================================== */

/* CSS Variables */
:root {
    /* Colors */
    --color-bg: #0a0a0b;
    --color-bg-secondary: #0f0f11;
    --color-bg-tertiary: #141416;
    --color-bg-card: #18181b;
    --color-bg-hover: #1f1f23;

    --color-text: #fafafa;
    --color-text-secondary: #a1a1aa;
    --color-text-muted: #71717a;

    --color-primary: #818cf8;
    --color-primary-light: #a5b4fc;
    --color-primary-dark: #6366f1;

    --color-accent: #c084fc;
    --color-accent-light: #d8b4fe;

    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-light: rgba(255, 255, 255, 0.12);

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a855f7 100%);
    --gradient-text: linear-gradient(135deg, #818cf8, #c084fc, #f472b6);
    --gradient-glow: radial-gradient(ellipse at center, rgba(129, 140, 248, 0.15), transparent 70%);

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    /* Spacing */
    --container-max: 1140px;
    --container-padding: 1.5rem;

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

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

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

ul,
ol {
    list-style: none;
}

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

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

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

/* Typography */
h1,
h2,
h3,
h4 {
    font-weight: 600;
    line-height: 1.15;
    letter-spacing: -0.03em;
}

h1 {
    font-size: clamp(2.75rem, 6vw, 4.5rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 3.25rem);
}

h3 {
    font-size: clamp(1.125rem, 2vw, 1.375rem);
}

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

/* Section Badge */
.section-badge {
    display: inline-block;
    padding: 0.375rem 0.875rem;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-full);
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
}

.section-title {
    margin-bottom: 1.25rem;
}

.section-description {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    max-width: 540px;
    margin: 0 auto 3rem;
    line-height: 1.7;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.9375rem;
    font-weight: 500;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.45);
}

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

.btn-ghost:hover {
    color: var(--color-text);
    background: var(--color-bg-hover);
    border-color: var(--color-border-light);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.btn-full {
    width: 100%;
}

/* ===================================
   HEADER
   =================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 0;
    background: rgba(10, 10, 11, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition-base);
}

.header.scrolled {
    border-bottom-color: var(--color-border);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.logo-img {
    height: 28px;
    width: auto;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--color-text);
}

.logo svg {
    width: 32px;
    height: 32px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
    font-weight: 450;
    transition: color var(--transition-fast);
}

.nav-links a:hover {
    color: var(--color-text);
}

.nav-links .btn {
    margin-left: 0.5rem;
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 0.5rem;
}

.mobile-menu-btn span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: all var(--transition-base);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--color-bg);
    padding: 1.5rem;
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-slow);
    z-index: 999;
}

.mobile-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

.mobile-nav-links {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.mobile-nav-links a {
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--color-text-secondary);
}

/* ===================================
   HERO SECTION
   =================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 8rem 0 6rem;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse 60% 40% at 50% 0%, rgba(99, 102, 241, 0.12), transparent 60%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    margin-bottom: 1.5rem;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    max-width: 560px;
    margin: 0 auto 2.5rem;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-glow {
    position: absolute;
    bottom: -200px;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 400px;
    background: radial-gradient(ellipse at center, rgba(99, 102, 241, 0.08), transparent 70%);
    pointer-events: none;
}

/* ===================================
   FEATURES GRID
   =================================== */
.features-section {
    padding: 6rem 0;
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem 2.5rem;
}

.feature-item {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.feature-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    margin-bottom: 0.25rem;
}

.feature-icon svg {
    stroke-linecap: round;
    stroke-linejoin: round;
}

.feature-item h3 {
    font-weight: 500;
    font-size: 1rem;
    color: var(--color-text);
    letter-spacing: -0.01em;
}

.feature-item p {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* ===================================
   VISION SECTION
   =================================== */
.vision-section {
    position: relative;
    padding: 8rem 0;
    text-align: center;
    overflow: hidden;
}

.vision-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 500px;
    height: 500px;
    background: conic-gradient(from 180deg at 50% 50%,
            transparent 0deg,
            rgba(99, 102, 241, 0.12) 120deg,
            rgba(139, 92, 246, 0.08) 240deg,
            transparent 360deg);
    filter: blur(60px);
    pointer-events: none;
}

.vision-features {
    display: flex;
    gap: 4rem;
    justify-content: center;
    margin-top: 4rem;
    position: relative;
    z-index: 1;
}

.vision-feature {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    text-align: left;
    max-width: 340px;
}

.vision-feature-icon {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-md);
    color: var(--color-text-muted);
}

.vision-feature-content {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.vision-feature-content strong {
    color: var(--color-text);
    font-weight: 500;
}

/* ===================================
   APPROACH SECTION
   =================================== */
.approach-section {
    padding: 6rem 0 0;
}

.approach-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.approach-card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
    transition: border-color var(--transition-base);
}

.approach-card:hover {
    border-color: var(--color-border-light);
}

.approach-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    margin-bottom: 1.5rem;
}

.approach-card h3 {
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: 0.75rem;
}

.approach-card p {
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
    line-height: 1.7;
}

/* Encryption Section */
.encryption-section {
    position: relative;
    padding: 8rem 0;
    margin-top: 6rem;
    text-align: center;
    overflow: hidden;
}

.encryption-bg {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.06;
    font-family: monospace;
    font-size: 0.75rem;
    color: var(--color-text);
    overflow: hidden;
    user-select: none;
    pointer-events: none;
}

.encryption-text {
    white-space: pre-wrap;
    word-break: break-all;
    text-align: center;
    max-width: 100%;
    line-height: 1.8;
}

.encryption-content {
    position: relative;
    z-index: 1;
}

.encryption-icon {
    margin-bottom: 2rem;
}

.encryption-icon svg {
    filter: drop-shadow(0 0 30px rgba(129, 140, 248, 0.4));
}

/* ===================================
   JOURNEY SECTION
   =================================== */
.journey-section {
    padding: 8rem 0;
    text-align: center;
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
}

.journey-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 4rem;
}

.journey-step {
    text-align: left;
    padding: 2rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.journey-step:hover {
    border-color: var(--color-border-light);
    transform: translateY(-4px);
}

.journey-number {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 1rem;
    letter-spacing: 0.05em;
}

.journey-step h3 {
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.journey-step p {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
    line-height: 1.6;
}

/* ===================================
   STORIES SECTION
   =================================== */
.stories-section {
    padding: 8rem 0;
    text-align: center;
}

.stories-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 4rem;
}

.story-card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: 1.75rem;
    text-align: left;
    transition: all var(--transition-base);
}

.story-card:hover {
    border-color: var(--color-border-light);
}

.story-text {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.story-author {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.story-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
    color: white;
}

.story-info {
    display: flex;
    flex-direction: column;
}

.story-info strong {
    font-size: 0.875rem;
    font-weight: 500;
}

.story-info span {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

/* ===================================
   CTA SECTION
   =================================== */
.cta-section {
    position: relative;
    padding: 8rem 0;
    text-align: center;
    overflow: hidden;
}

.cta-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 400px;
    background:
        radial-gradient(ellipse 50% 80% at 50% 50%, rgba(99, 102, 241, 0.08) 0%, transparent 70%),
        linear-gradient(180deg, transparent 0%, rgba(139, 92, 246, 0.04) 50%, transparent 100%);
    pointer-events: none;
}

.cta-section .container {
    position: relative;
    z-index: 1;
}

/* ===================================
   CONTACT SECTION
   =================================== */
.contact-section {
    padding: 8rem 0;
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-info {
    position: sticky;
    top: 120px;
}

.contact-info .section-description {
    margin: 0 0 2rem;
    text-align: left;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
}

.contact-item svg {
    color: var(--color-text-muted);
    flex-shrink: 0;
}

.social-links {
    display: flex;
    gap: 0.75rem;
}

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

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

/* Contact Form */
.contact-form-wrapper {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.875rem 1rem;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    transition: all var(--transition-fast);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-text-muted);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2371717a' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

.form-group select option {
    background: var(--color-bg-secondary);
}

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

/* Captcha */
.captcha-group .captcha-container {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.captcha-image {
    flex: 1;
    height: 48px;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.captcha-image svg {
    max-width: 100%;
    height: auto;
}

.captcha-refresh {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-muted);
    transition: all var(--transition-fast);
}

.captcha-refresh:hover {
    border-color: var(--color-border-light);
    color: var(--color-text);
}

/* Form Message */
.form-message {
    padding: 1rem;
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    display: none;
}

.form-message.success {
    display: block;
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.2);
    color: #4ade80;
}

.form-message.error {
    display: block;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: #f87171;
}

/* ===================================
   FOOTER
   =================================== */
.footer {
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-brand .logo {
    margin-bottom: 1rem;
}

.footer-links {
    display: flex;
    gap: 4rem;
}

.footer-column h4 {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 1.25rem;
}

.footer-column ul {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-column a {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

.footer-column a:hover {
    color: var(--color-text);
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid var(--color-border);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

/* ===================================
   RESPONSIVE
   =================================== */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .hero {
        padding: 7rem 0 4rem;
        min-height: auto;
    }

    .hero-description {
        font-size: 1.125rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .vision-features {
        flex-direction: column;
        gap: 2rem;
        align-items: center;
    }

    .vision-feature {
        max-width: 100%;
    }

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

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

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

    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .contact-info {
        position: static;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-content {
        flex-direction: column;
        gap: 3rem;
    }

    .footer-links {
        flex-wrap: wrap;
        gap: 2rem;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .hero-buttons .btn {
        width: 100%;
    }

    .contact-form-wrapper {
        padding: 1.5rem;
    }
}

/* ===================================
   ANIMATIONS
   =================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}