/* Custom Styles for Vidro & Cia */

html {
    scroll-behavior: smooth;
    scroll-padding-top: 120px; /* Banner (32px) + Navbar (approx 80px) + Buffer */
}

:root {
    --background: #f8f9fa;
    --surface: #f8f9fa;
    --on-surface: #191c1d;
    --on-surface-variant: #41474f;
    --primary: #0ea5e9; /* Sky 500 */
    --on-primary: #ffffff;
    --primary-container: #0c4a6e;
    --on-primary-container: #e0f2fe;
    --secondary: #008291;
    --on-secondary: #ffffff;
    --secondary-container: #6ae1fd;
    --on-secondary-container: #006374;
    --outline: #94a3b8;
    --outline-variant: #e2e8f0;
    --surface-container-low: #f8fafc;
    --surface-container: #f1f5f9;
    --surface-container-high: #e2e8f0;
    --surface-container-highest: #cbd5e1;
    --surface-container-lowest: #ffffff;
    --inverse-surface: #0f172a;
    --inverse-on-surface: #f8fafc;
    --surface-tint: #0ea5e9;
}

.dark {
    --background: #020617; /* Slate-950 / Deepest Navy */
    --surface: #0a1421; /* Deep navy surface */
    --on-surface: #f8fafc;
    --on-surface-variant: #94a3b8;
    --primary: #38bdf8; /* Bright Sky Blue */
    --on-primary: #020617;
    --primary-container: #004a77;
    --on-primary-container: #bae6fd;
    --secondary: #7dd3fc;
    --on-secondary: #00364d;
    --secondary-container: #0c4a6e;
    --on-secondary-container: #e0f2fe;
    --outline: #475569;
    --outline-variant: #1e293b;
    --surface-container-low: #0f172a; /* Slate-900 */
    --surface-container: #1e293b; /* Slate-800 */
    --surface-container-high: #334155;
    --surface-container-highest: #475569;
    --surface-container-lowest: #020617;
    --inverse-surface: #f1f5f9;
    --inverse-on-surface: #0f172a;
    --surface-tint: #38bdf8;
}

nav {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    background-color: rgba(10, 20, 33, 0.65); /* Dark Navy Glass - constant in both modes */
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 100px;
    margin-top: 1.5rem;
    padding: 0.75rem 0;
    width: 90%;
    max-width: 1100px;
    left: 50%;
    transform: translateX(-50%);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
}

.dark nav {
    background-color: rgba(10, 20, 33, 0.4); /* Slightly lighter in dark mode to show blur better */
    border: 1px solid rgba(255, 255, 255, 0.05);
}

nav.nav-scrolled {
    background-color: rgba(10, 20, 33, 0.85);
    margin-top: 0.75rem;
    padding: 0.4rem 0;
    width: 85%;
    max-width: 1000px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.3);
}

.dark nav.nav-scrolled {
    background-color: rgba(10, 20, 33, 0.9);
}

nav a {
    transition: color 0.3s ease;
    color: rgba(255, 255, 255, 0.8); /* Light text for dark menu bg */
}

nav span {
    transition: color 0.3s ease;
    color: var(--primary);
}

nav.nav-scrolled a {
    color: #ffffff;
}

nav a.border-b-2 {
    border-color: var(--primary);
}

.glass-gradient {
    background: linear-gradient(135deg, #00395e 0%, #005182 100%);
}

.dark .glass-gradient {
    background: linear-gradient(135deg, #005182 0%, #0077b9 100%);
}

.material-symbols-outlined {
    font-variation-settings: 'FILL' 0, 'wght' 300, 'GRAD' 0, 'opsz' 24;
}

.text-shadow-sm {
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* Premium Button Shine Effect */
button.bg-primary {
    position: relative;
    overflow: hidden;
}

button.bg-primary::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        45deg,
        transparent,
        rgba(255, 255, 255, 0.1),
        transparent
    );
    transform: rotate(45deg);
    transition: 0.5s;
}

button.bg-primary:hover::after {
    left: 100%;
}

/* Smooth Card Hover */
.group:hover .group-hover\:scale-105 {
    transform: scale(1.05);
}

.transition-all {
    transition-duration: 300ms;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

/* Hero Section Styles */
#hero {
    position: relative;
    overflow: hidden;
    width: 100%;
    min-height: 800px;
}


.glass-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

.dark .glass-card {
    background: rgba(0, 39, 65, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Theme Toggle Button Extra Styles */
#theme-toggle {
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

#theme-toggle:hover {
    transform: rotate(15deg) scale(1.1);
}