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

/* ==========================================
   THEME VARIABLES - LIGHT MODE (Default)
   ========================================== */
:root {
    /* Light Theme Colors */
    --color-bg: #f8fafb;
    --color-bg-card: #ffffff;
    --color-primary: #10b981;
    --color-primary-dark: #059669;
    --color-accent: #0d9488;
    --color-text-main: #1f2937;
    --color-text-muted: #6b7280;
    --color-white: #ffffff;
    --color-border: #e5e7eb;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
    --shadow-glow: 0 4px 14px rgba(16, 185, 129, 0.35);

    /* Background pattern */
    --bg-pattern: radial-gradient(circle at 20% 20%, rgba(16, 185, 129, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(13, 148, 136, 0.05) 0%, transparent 50%);
    --blob-1-color: transparent;
    --blob-2-color: transparent;
    --blob-opacity: 0;

    /* Card styles */
    --card-bg: var(--color-bg-card);
    --card-border: 1px solid var(--color-border);
    --card-shadow: var(--shadow-xl);
    --card-corner-opacity: 0;

    /* Feature card */
    --feature-bg: var(--color-bg);
    --feature-hover-bg: var(--color-white);
    --feature-icon-bg: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, rgba(13, 148, 136, 0.1) 100%);
    --feature-icon-border: none;

    /* Brand section */
    --brand-bg: var(--color-bg);
    --brand-logo-filter: grayscale(20%);
    --brand-logo-opacity: 0.85;

    /* Button */
    --btn-gradient: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    --btn-text-color: var(--color-white);
    --btn-radius: 50px;

    /* Typography */
    --font-main: 'Montserrat', sans-serif;
    --font-heading: 'Montserrat', sans-serif;
    --heading-transform: none;
    --heading-letter-spacing: normal;

    /* Mark/highlight */
    --mark-bg: linear-gradient(120deg, rgba(16, 185, 129, 0.2) 0%, rgba(13, 148, 136, 0.2) 100%);
    --mark-color: var(--color-primary-dark);
    --mark-shadow: none;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;

    /* Layout */
    --max-width: 1200px;
    --border-radius: 20px;
    --border-radius-sm: 12px;

    /* Transition */
    --theme-transition: all 0.4s ease;
}

/* ==========================================
   DARK MODE THEME
   ========================================== */
[data-theme="dark"] {
    /* Dark Theme Colors */
    --color-bg: #1a1a1a;
    --color-bg-card: #242424;
    --color-primary: #ff6b00;
    --color-primary-dark: #ff8533;
    --color-accent: #ffa500;
    --color-text-main: #f5f5f5;
    --color-text-muted: #9ca3af;
    --color-white: #ffffff;
    --color-border: #3a3a3a;

    /* Shadows */
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 10px 40px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.05);
    --shadow-glow: 0 0 30px rgba(255, 107, 0, 0.2);

    /* Background pattern - Industrial grid */
    --bg-pattern: linear-gradient(rgba(255, 107, 0, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 107, 0, 0.03) 1px, transparent 1px),
        radial-gradient(ellipse at 50% 0%, rgba(255, 107, 0, 0.08) 0%, transparent 60%);
    --blob-1-color: var(--color-primary);
    --blob-2-color: var(--color-accent);
    --blob-opacity: 0.15;

    /* Card styles */
    --card-bg: linear-gradient(145deg, var(--color-bg-card) 0%, #2d2d2d 100%);
    --card-border: 1px solid var(--color-border);
    --card-shadow: var(--shadow-xl);
    --card-corner-opacity: 0.3;

    /* Feature card */
    --feature-bg: rgba(255, 255, 255, 0.03);
    --feature-hover-bg: rgba(255, 107, 0, 0.05);
    --feature-icon-bg: rgba(255, 107, 0, 0.15);
    --feature-icon-border: 1px solid rgba(255, 107, 0, 0.3);

    /* Brand section */
    --brand-bg: transparent;
    --brand-logo-filter: contrast(1.1);
    --brand-logo-opacity: 1;

    /* Button */
    --btn-gradient: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 50%, var(--color-accent) 100%);
    --btn-text-color: #1a1a1a;
    --btn-radius: 8px;

    /* Typography */
    --font-main: 'Barlow', sans-serif;
    --font-heading: 'Rajdhani', sans-serif;
    --heading-transform: uppercase;
    --heading-letter-spacing: 0.5px;

    /* Mark/highlight */
    --mark-bg: transparent;
    --mark-color: var(--color-primary);
    --mark-shadow: 0 0 20px rgba(255, 107, 0, 0.4);
}

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

body {
    font-family: var(--font-main);
    background: var(--color-bg);
    color: var(--color-text-main);
    min-height: 100vh;
    line-height: 1.7;
    overflow-x: hidden;
    transition: var(--theme-transition);
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

ul {
    list-style: none;
}

/* ==========================================
   THEME TOGGLE BUTTON
   ========================================== */
.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 50px;
    padding: 12px 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-main);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text-main);
    box-shadow: var(--shadow-md);
    transition: var(--theme-transition);
}

.theme-toggle:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.theme-toggle .icon {
    font-size: 1.2rem;
    transition: transform 0.4s ease;
}

.theme-toggle:hover .icon {
    transform: rotate(20deg);
}

.theme-toggle .label-light,
.theme-toggle .label-dark {
    transition: opacity 0.3s;
}

[data-theme="dark"] .theme-toggle .label-light {
    display: none;
}

[data-theme="light"] .theme-toggle .label-dark,
:root:not([data-theme]) .theme-toggle .label-dark {
    display: none;
}

/* ==========================================
   BACKGROUND ANIMATION
   ========================================== */
.bg-animated {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    pointer-events: none;
    background: var(--bg-pattern), var(--color-bg);
    background-size: 50px 50px, 50px 50px, 100% 100%, 100% 100%;
    transition: var(--theme-transition);
}

.bg-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: var(--blob-opacity);
    transition: var(--theme-transition);
}

.bg-blob-1 {
    width: 40vw;
    height: 40vw;
    background: var(--blob-1-color);
    top: -20%;
    right: -10%;
    animation: blobPulse 8s ease-in-out infinite alternate;
}

.bg-blob-2 {
    width: 30vw;
    height: 30vw;
    background: var(--blob-2-color);
    bottom: -15%;
    left: -5%;
    animation: blobPulse 8s ease-in-out infinite alternate-reverse;
}

@keyframes blobPulse {
    0% {
        opacity: var(--blob-opacity);
        transform: scale(1);
    }

    100% {
        opacity: calc(var(--blob-opacity) * 1.3);
        transform: scale(1.1);
    }
}

/* ==========================================
   LAYOUT CONTAINER
   ========================================== */
.main-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: var(--spacing-md);
    width: 100%;
}

/* ==========================================
   GLASS CARD
   ========================================== */
.glass-card {
    background: var(--card-bg);
    border: var(--card-border);
    box-shadow: var(--card-shadow);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg) var(--spacing-md);
    width: 100%;
    max-width: 960px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: var(--theme-transition);
}

/* Decorative corners for dark mode */
.glass-card::before,
.glass-card::after {
    content: '';
    position: absolute;
    width: 80px;
    height: 80px;
    border: 2px solid var(--color-primary);
    opacity: var(--card-corner-opacity);
    transition: var(--theme-transition);
}

.glass-card::before {
    top: 15px;
    left: 15px;
    border-right: none;
    border-bottom: none;
}

.glass-card::after {
    bottom: 15px;
    right: 15px;
    border-left: none;
    border-top: none;
}

.glass-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--card-shadow), var(--shadow-glow);
}

/* ==========================================
   HEADER & LOGO
   ========================================== */
.header {
    margin-bottom: var(--spacing-lg);
}

.logo-container {
    max-width: 420px;
    width: 100%;
    margin: 0 auto;
    animation: logoEntry 0.8s ease-out forwards;
    transition: var(--theme-transition);
}

[data-theme="dark"] .logo-container {
    filter: drop-shadow(0 0 20px rgba(255, 107, 0, 0.3));
}

@keyframes logoEntry {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(-15px);
    }

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

.logo-container img {
    width: 100%;
    height: auto;
}

/* ==========================================
   TYPOGRAPHY
   ========================================== */
h1,
h2,
h3 {
    font-family: var(--font-heading);
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
    text-transform: var(--heading-transform);
    letter-spacing: var(--heading-letter-spacing);
    transition: var(--theme-transition);
}

.tagline {
    font-size: 1.2rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
    max-width: 550px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 400;
    transition: var(--theme-transition);
}

mark {
    background: var(--mark-bg);
    color: var(--mark-color);
    font-weight: 700;
    padding: 0.1em 0.4em;
    border-radius: 4px;
    text-shadow: var(--mark-shadow);
    transition: var(--theme-transition);
}

/* ==========================================
   CTA BUTTON
   ========================================== */
.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--btn-gradient);
    color: var(--btn-text-color);
    padding: 1.1rem 2.5rem;
    border-radius: var(--btn-radius);
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-glow);
    transition: var(--theme-transition);
    position: relative;
    overflow: hidden;
    border: none;
    text-transform: var(--heading-transform);
    letter-spacing: var(--heading-letter-spacing);
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
    transition: left 0.5s;
}

.cta-button:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 30px rgba(var(--color-primary), 0.5);
}

.cta-button:hover::before {
    left: 100%;
}

.cart-icon {
    font-size: 1.4rem;
}

/* ==========================================
   FEATURES GRID
   ========================================== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    width: 100%;
    margin-bottom: var(--spacing-lg);
    text-align: left;
}

.feature-card {
    background: var(--feature-bg);
    border: 1px solid var(--color-border);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-sm);
    transition: var(--theme-transition);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    position: relative;
}

/* Left accent bar for dark mode */
.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--color-primary);
    border-radius: 4px 0 0 4px;
    opacity: 0;
    transition: opacity 0.3s;
}

[data-theme="dark"] .feature-card:hover::before {
    opacity: 1;
}

.feature-card:hover {
    background: var(--feature-hover-bg);
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
    border-color: var(--color-primary);
}

[data-theme="dark"] .feature-card:hover {
    transform: translateX(5px);
}

.feature-icon {
    font-size: 1.8rem;
    background: var(--feature-icon-bg);
    border: var(--feature-icon-border);
    width: 55px;
    height: 55px;
    min-width: 55px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    transition: var(--theme-transition);
}

.feature-text h3 {
    font-size: 1.05rem;
    color: var(--color-text-main);
    margin-bottom: 0.3rem;
}

.feature-text p {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    line-height: 1.5;
}

/* ==========================================
   BRAND MARQUEE
   ========================================== */
.brand-section {
    width: 100%;
    overflow: hidden;
    margin-bottom: var(--spacing-lg);
    position: relative;
    padding: var(--spacing-sm) 0;
    background: var(--brand-bg);
    border-radius: var(--border-radius-sm);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    transition: var(--theme-transition);
}

.brand-track {
    display: flex;
    gap: var(--spacing-lg);
    animation: scroll 25s linear infinite;
    width: max-content;
}

.brand-logo {
    height: 48px;
    object-fit: contain;
    background: rgba(255, 255, 255, 0.95);
    padding: 0.5rem 1.2rem;
    border-radius: 8px;
    transition: all 0.3s;
    filter: var(--brand-logo-filter);
    opacity: var(--brand-logo-opacity);
}

.brand-logo:hover {
    transform: scale(1.1);
    filter: none;
    opacity: 1;
}

[data-theme="dark"] .brand-logo:hover {
    box-shadow: 0 0 20px rgba(255, 107, 0, 0.4);
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(-50%);
    }
}

.brand-section:hover .brand-track {
    animation-play-state: paused;
}

/* ==========================================
   FOOTER
   ========================================== */
.footer {
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.85rem;
    margin-top: auto;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
    width: 100%;
    transition: var(--theme-transition);
}

.footer a {
    color: var(--color-primary);
    font-weight: 500;
}

.footer a:hover {
    color: var(--color-primary-dark);
}

[data-theme="dark"] .footer a:hover {
    text-shadow: 0 0 10px rgba(255, 107, 0, 0.5);
}

/* RENACE.TECH - Minimal branding */
.powered-by {
    opacity: 0.4;
    font-size: 0.75em;
    transition: opacity 0.3s ease;
}

.powered-by:hover {
    opacity: 0.7;
}

.renace-link {
    color: inherit;
}

/* ==========================================
   RESPONSIVE
   ========================================== */
@media (max-width: 768px) {
    .glass-card {
        padding: var(--spacing-md) var(--spacing-sm);
        border-radius: 16px;
    }

    .glass-card::before,
    .glass-card::after {
        width: 40px;
        height: 40px;
    }

    .logo-container {
        max-width: 280px;
    }

    .cta-button {
        width: 100%;
        justify-content: center;
    }

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

    .theme-toggle {
        top: 10px;
        right: 10px;
        padding: 10px 14px;
        font-size: 0.8rem;
    }

    :root,
    [data-theme] {
        --spacing-lg: 2.5rem;
        --spacing-md: 1.5rem;
    }
}

/* ==========================================
   ANIMATIONS
   ========================================== */
.fade-in-up {
    opacity: 0;
    transform: translateY(25px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 {
    transition-delay: 0.1s;
}

.delay-2 {
    transition-delay: 0.2s;
}

.delay-3 {
    transition-delay: 0.3s;
}