/* ============================================
   RESHARDIC STUDIOS - Professional Theme
   ============================================ */

:root {
    /* Color Palette */
    --color-bg-primary: #0f172a;
    --color-bg-secondary: #1e293b;
    --color-bg-tertiary: #334155;
    --color-bg-card: rgba(30, 41, 59, 0.85);
    
    --color-accent-primary: #4f46e5;
    --color-accent-secondary: #6366f1;
    --color-accent-gradient: linear-gradient(135deg, #4338ca 0%, #4f46e5 100%);
    
    --color-text-primary: #f1f5f9;
    --color-text-secondary: #94a3b8;
    --color-text-muted: #64748b;
    
    --color-border: rgba(226, 232, 240, 0.08);
    --color-border-hover: rgba(79, 70, 229, 0.3);
    
    /* Typography */
    --font-display: 'Plus Jakarta Sans', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Inter', 'SF Pro Text', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.45);
    --shadow-glow: 0 4px 24px rgba(0, 0, 0, 0.4);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-text-secondary);
    background: var(--color-bg-primary);
    min-height: 100vh;
    position: relative;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Subtle static gradient for depth */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse 60% 50% at 50% 0%, rgba(79, 70, 229, 0.07) 0%, transparent 60%);
    pointer-events: none;
    z-index: -1;
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */

header {
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: var(--space-md) var(--space-xl);
    background: rgba(15, 23, 42, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.logo {
    height: 36px;
    width: auto;
    opacity: 0.95;
    transition: opacity var(--transition-fast);
}

.logo:hover {
    opacity: 1;
}

.site-title a {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--color-text-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.site-title a:hover {
    color: var(--color-accent-primary);
}

.header-right {
    display: flex;
    gap: var(--space-sm);
    align-items: center;
}

.social-links {
    display: flex;
    gap: var(--space-sm);
}

.social-links a {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    padding: var(--space-sm) var(--space-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    text-decoration: none;
    background: transparent;
}

.social-links a:hover {
    background: rgba(79, 70, 229, 0.08);
    border-color: var(--color-border-hover);
    color: var(--color-text-primary);
    transform: translateY(-1px);
}

/* ============================================
   MAIN CONTENT
   ============================================ */

main {
    padding: var(--space-3xl) var(--space-xl);
    max-width: 1000px;
    margin: 0 auto;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    color: var(--color-text-primary);
    margin-top: var(--space-2xl);
    margin-bottom: var(--space-md);
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.3;
}

h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--space-lg);
    color: var(--color-text-primary);
}

h2 {
    font-size: clamp(1.5rem, 3vw, 1.875rem);
    margin-top: var(--space-3xl);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

h3 {
    font-size: 1.25rem;
    color: var(--color-text-primary);
}

p {
    margin-bottom: var(--space-md);
    color: var(--color-text-secondary);
}

/* ============================================
   ABOUT SECTION
   ============================================ */

.about-section {
    background: var(--color-bg-card);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    margin: var(--space-2xl) 0;
    border: 1px solid var(--color-border);
    position: relative;
    overflow: hidden;
}

.about-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--color-accent-gradient);
}

.about-section h2 {
    margin-top: 0;
    border-bottom: none;
    padding-bottom: 0;
}

.about-section p {
    color: var(--color-text-secondary);
    font-size: 1.0625rem;
    line-height: 1.8;
}

/* ============================================
   FEATURE GRID & CARDS
   ============================================ */

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
    margin: var(--space-xl) 0;
}

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

.feature-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-lg);
    padding: 1px;
    background: linear-gradient(135deg, transparent 0%, rgba(79, 70, 229, 0.2) 50%, transparent 100%);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-3px);
    border-color: var(--color-border-hover);
    box-shadow: var(--shadow-md);
}

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

.feature-card h3 {
    color: var(--color-text-primary);
    margin-top: 0;
    margin-bottom: var(--space-sm);
    font-size: 1.125rem;
}

.feature-card p {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
    margin-bottom: 0;
    line-height: 1.7;
}

/* Product card with CTA */
.feature-card .btn {
    margin-top: var(--space-md);
}

/* ============================================
   BUTTONS
   ============================================ */

.button-group {
    display: flex;
    gap: var(--space-md);
    margin: var(--space-xl) 0;
    flex-wrap: wrap;
    justify-content: center;
}

.btn {
    padding: 0.875rem 1.75rem;
    border: none;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.9375rem;
    transition: all var(--transition-base);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--color-accent-gradient);
    color: #fff;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
    text-decoration: none;
    color: #fff;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--color-border-hover);
    color: var(--color-text-primary);
    text-decoration: none;
}

/* ============================================
   LINKS
   ============================================ */

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

a:hover, a:focus {
    color: var(--color-accent-secondary);
    text-decoration: none;
}

/* ============================================
   LISTS
   ============================================ */

ul {
    list-style-type: none;
    padding-left: 0;
    margin: var(--space-md) 0;
}

ul li {
    padding: var(--space-sm) 0;
    padding-left: var(--space-lg);
    position: relative;
    color: var(--color-text-secondary);
    border-bottom: none;
}

ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-accent-primary);
    opacity: 0.6;
}

ul li strong {
    color: var(--color-text-primary);
}

/* ============================================
   CARDS & BOXES
   ============================================ */

.card {
    background: var(--color-bg-card);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-lg);
    border: 1px solid var(--color-border);
}

.card h3 {
    margin-top: 0;
    font-size: 1rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.card p {
    margin-bottom: var(--space-md);
}

.highlight-box {
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.06) 0%, rgba(99, 102, 241, 0.06) 100%);
    border: 1px solid rgba(79, 70, 229, 0.15);
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    margin: var(--space-lg) 0;
    position: relative;
    overflow: hidden;
}

.highlight-box::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--color-accent-gradient);
}

.highlight-box p {
    margin: 0;
    color: var(--color-text-secondary);
}

.highlight-box strong {
    color: var(--color-text-primary);
}

/* ============================================
   NEWS LIST
   ============================================ */

main > ul {
    background: var(--color-bg-card);
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

main > ul li {
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-md) 0;
    padding-left: var(--space-lg);
}

main > ul li:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

main > ul li:first-child {
    padding-top: 0;
}

/* ============================================
   FOOTER
   ============================================ */

footer {
    padding: var(--space-2xl) var(--space-xl);
    background: var(--color-bg-secondary);
    text-align: center;
    border-top: 1px solid var(--color-border);
    margin-top: var(--space-3xl);
}

.footer-content {
    max-width: 800px;
    margin: 0 auto;
}

.footer-content p {
    margin: 0;
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

.footer-tagline {
    margin-top: var(--space-xs) !important;
    font-size: 0.8125rem !important;
    color: var(--color-text-muted);
    opacity: 0.7;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 768px) {
    header {
        padding: var(--space-md);
        flex-direction: column;
        gap: var(--space-md);
    }
    
    .header-left {
        width: 100%;
        justify-content: center;
    }
    
    .header-right {
        width: 100%;
        justify-content: center;
    }
    
    .social-links {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    main {
        padding: var(--space-xl) var(--space-md);
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .button-group {
        flex-direction: column;
        align-items: stretch;
    }
    
    .btn {
        width: 100%;
    }
    
    h1 {
        font-size: 1.75rem;
    }
    
    h2 {
        font-size: 1.25rem;
    }
}

/* ============================================
   ANIMATIONS
   ============================================ */

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

main > * {
    animation: fadeInUp 0.6s ease-out;
    animation-fill-mode: both;
}

main > *:nth-child(1) { animation-delay: 0s; }
main > *:nth-child(2) { animation-delay: 0.05s; }
main > *:nth-child(3) { animation-delay: 0.1s; }
main > *:nth-child(4) { animation-delay: 0.15s; }
main > *:nth-child(5) { animation-delay: 0.2s; }
main > *:nth-child(6) { animation-delay: 0.25s; }
main > *:nth-child(7) { animation-delay: 0.3s; }
main > *:nth-child(8) { animation-delay: 0.35s; }
main > *:nth-child(9) { animation-delay: 0.4s; }
main > *:nth-child(10) { animation-delay: 0.45s; }