/* ===================================
   DataSuite Landing Page
   Palette: Lavender / Black / Mint Green
   =================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ===================================
   CSS Variables
   =================================== */
:root {
    --bg-void: #08080f;
    --bg-primary: #0a0a14;
    --bg-surface: #12122a;
    --bg-card: #1a1a36;
    --bg-card-hover: #22224a;

    --lavender: #a78bfa;
    --lavender-light: #c4b5fd;
    --lavender-dark: #7c3aed;
    --lavender-glow: rgba(167, 139, 250, 0.35);

    --mint: #34d399;
    --mint-light: #6ee7b7;
    --mint-dark: #059669;
    --mint-glow: rgba(52, 211, 153, 0.3);

    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    --border-color: rgba(167, 139, 250, 0.12);
    --border-hover: rgba(167, 139, 250, 0.3);

    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 22px;
    --radius-xl: 32px;
    --radius-full: 9999px;

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.4);
    --shadow-glow-lav: 0 0 30px rgba(167, 139, 250, 0.25);
    --shadow-glow-mint: 0 0 30px rgba(52, 211, 153, 0.2);

    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

.mobile-only {
    display: none !important;
}

body.landing-page {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-void);
    color: var(--text-primary);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

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

/* ===================================
   Animated Gradient Mesh Background
   =================================== */
.hero-bg-mesh {
    position: absolute;
    inset: 0;
    overflow: hidden;
    z-index: 0;
}

.hero-bg-mesh::before,
.hero-bg-mesh::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.5;
    animation: floatMesh 12s ease-in-out infinite alternate;
}

.hero-bg-mesh::before {
    width: 600px;
    height: 600px;
    background: var(--lavender-dark);
    top: -15%;
    left: -10%;
}

.hero-bg-mesh::after {
    width: 500px;
    height: 500px;
    background: var(--mint-dark);
    bottom: -20%;
    right: -5%;
    animation-delay: 4s;
    animation-direction: alternate-reverse;
}

.hero-bg-orb {
    position: absolute;
    width: 350px;
    height: 350px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--lavender), var(--mint));
    filter: blur(140px);
    opacity: 0.25;
    top: 30%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: floatMesh 10s ease-in-out infinite alternate-reverse;
}

@keyframes floatMesh {
    0% {
        transform: translate(0, 0) scale(1);
    }

    50% {
        transform: translate(30px, -20px) scale(1.05);
    }

    100% {
        transform: translate(-20px, 15px) scale(0.95);
    }
}

/* ===================================
   Navbar
   =================================== */
.landing-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition);
    background: transparent;
}

.landing-nav.scrolled {
    background: rgba(10, 10, 20, 0.85);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.nav-logo i {
    font-size: 1.6rem;
    background: linear-gradient(135deg, var(--lavender), var(--mint));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
    position: relative;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--lavender), var(--mint));
    border-radius: 2px;
    transition: var(--transition);
}

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

.nav-cta {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-mobile-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 8px;
}

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.95rem;
    font-family: 'Inter', sans-serif;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--lavender), var(--lavender-dark));
    color: white;
    box-shadow: var(--shadow-glow-lav);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 40px rgba(167, 139, 250, 0.45), var(--shadow-md);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1.5px solid var(--border-hover);
}

.btn-outline:hover {
    background: rgba(167, 139, 250, 0.08);
    border-color: var(--lavender);
    transform: translateY(-3px);
}

.btn-mint {
    background: linear-gradient(135deg, var(--mint), var(--mint-dark));
    color: #0a0a14;
    font-weight: 700;
    box-shadow: var(--shadow-glow-mint);
}

.btn-mint:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 40px rgba(52, 211, 153, 0.4), var(--shadow-md);
}

.btn-lg {
    padding: 16px 40px;
    font-size: 1.05rem;
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 24px 80px;
    text-align: center;
    overflow: hidden;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    padding: 8px 20px;
    font-size: 0.85rem;
    color: var(--mint);
    font-weight: 500;
    margin-bottom: 32px;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-badge i {
    font-size: 0.8rem;
}

.hero h1 {
    font-size: clamp(2.8rem, 6vw, 4.5rem);
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -2px;
    margin-bottom: 24px;
    animation: fadeInUp 0.8s ease 0.4s both;
}

.hero h1 .gradient-text {
    background: linear-gradient(135deg, var(--lavender-light), var(--mint-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1.05rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    max-width: 580px;
    margin: 0 auto 40px;
    line-height: 1.8;
    animation: fadeInUp 0.8s ease 0.6s both;
}

.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.8s both;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

/* ===================================
   Section Base
   =================================== */
.section {
    padding: 100px 24px;
    position: relative;
}

.section-container {
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--lavender);
    margin-bottom: 16px;
}

.section-header h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 16px;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ===================================
   Features Grid
   =================================== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    transition: var(--transition-slow);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--lavender), var(--mint));
    opacity: 0;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-8px);
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-lg), var(--shadow-glow-lav);
}

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

.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.feature-icon.lavender {
    background: rgba(167, 139, 250, 0.12);
    color: var(--lavender);
}

.feature-icon.mint {
    background: rgba(52, 211, 153, 0.12);
    color: var(--mint);
}

.feature-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.feature-card p {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ===================================
   How It Works
   =================================== */
.steps-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    position: relative;
}

.steps-row::before {
    content: '';
    position: absolute;
    top: 44px;
    left: 15%;
    right: 15%;
    height: 2px;
    background: linear-gradient(90deg, var(--lavender), var(--mint));
    opacity: 0.3;
}

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

.step-number {
    width: 88px;
    height: 88px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    transition: var(--transition);
    position: relative;
    z-index: 1;
}

.step-number i {
    font-size: 2rem;
    background: linear-gradient(135deg, var(--lavender), var(--mint));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.step:hover .step-number {
    border-color: var(--lavender);
    box-shadow: var(--shadow-glow-lav);
    transform: scale(1.08);
}

.step h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.step p {
    font-size: 0.92rem;
    color: var(--text-secondary);
    max-width: 280px;
    margin: 0 auto;
}

/* ===================================
   CTA Section
   =================================== */
.cta-section {
    background: var(--bg-surface);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.cta-inner {
    text-align: center;
    max-width: 650px;
    margin: 0 auto;
}

.cta-inner h2 {
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 16px;
}

.cta-inner p {
    font-size: 1.05rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

/* ===================================
   Footer
   =================================== */
.landing-footer {
    padding: 40px 24px;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    border-top: 1px solid var(--border-color);
}

.landing-footer a {
    color: var(--lavender);
    transition: var(--transition);
}

.landing-footer a:hover {
    color: var(--lavender-light);
}

/* ===================================
   Auth Pages (Login / Register)
   =================================== */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 24px;
    position: relative;
    overflow: hidden;
}

.auth-page .hero-bg-mesh::before {
    width: 400px;
    height: 400px;
    top: -20%;
    left: -15%;
}

.auth-page .hero-bg-mesh::after {
    width: 350px;
    height: 350px;
    bottom: -25%;
    right: -10%;
}

.auth-card {
    position: relative;
    z-index: 1;
    background: rgba(26, 26, 54, 0.7);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 48px 40px;
    width: 100%;
    max-width: 440px;
    box-shadow: var(--shadow-lg);
}

.auth-card .auth-logo {
    text-align: center;
    margin-bottom: 32px;
}

.auth-card .auth-logo i {
    font-size: 2rem;
    background: linear-gradient(135deg, var(--lavender), var(--mint));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
    margin-bottom: 12px;
}

.auth-card .auth-logo h1 {
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.auth-card .auth-logo p {
    color: var(--text-secondary);
    font-size: 0.92rem;
    margin-top: 6px;
}

.auth-card .form-group {
    margin-bottom: 20px;
}

.auth-card .form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.auth-card .form-group input {
    width: 100%;
    padding: 14px 18px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.95rem;
    font-family: 'Inter', sans-serif;
    transition: var(--transition);
}

.auth-card .form-group input:focus {
    outline: none;
    border-color: var(--lavender);
    box-shadow: 0 0 0 3px rgba(167, 139, 250, 0.15);
}

.auth-card button[type="submit"] {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, var(--lavender), var(--lavender-dark));
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 1rem;
    font-family: 'Inter', sans-serif;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-glow-lav);
    margin-top: 8px;
}

.auth-card button[type="submit"]:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 40px rgba(167, 139, 250, 0.4);
}

.auth-card .auth-footer {
    text-align: center;
    margin-top: 24px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.auth-card .auth-footer a {
    color: var(--lavender);
    font-weight: 600;
}

.auth-card .auth-footer a:hover {
    color: var(--lavender-light);
    text-decoration: underline;
}

.auth-card .back-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 24px;
    transition: var(--transition);
}

.auth-card .back-link:hover {
    color: var(--lavender);
}

.auth-card .flashes {
    list-style: none;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    margin-bottom: 20px;
    color: #fca5a5;
    font-size: 0.9rem;
}

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

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(8, 8, 15, 0.97);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 28px;
        z-index: 999;
    }

    .nav-links.open {
        display: flex;
    }

    .mobile-only {
        display: block !important;
    }

    .nav-links a {
        font-size: 1.3rem;
    }

    .nav-cta {
        display: none;
    }

    .nav-links.open~.nav-cta {
        display: none;
    }

    .nav-mobile-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        z-index: 1001;
    }

    .hero {
        padding: 100px 20px 60px;
        min-height: auto;
    }

    .hero h1 {
        letter-spacing: -1px;
    }

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

    .steps-row {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .steps-row::before {
        display: none;
    }

    .section {
        padding: 60px 20px;
    }

    .auth-card {
        padding: 36px 28px;
    }
}

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

    .hero-actions .btn {
        width: 100%;
        justify-content: center;
    }

    .btn-lg {
        padding: 14px 32px;
    }
}