/* css/style.css */
@import url('variables.css');

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-body);
    background: var(--canvas-bg);
    color: var(--text-slate);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;
    display: flex;
    flex-direction: column;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--text-slate);
    font-weight: 700;
}

/* Base Layout Container */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

@media (max-width: 1024px) {
    .container {
        padding: 0 1.5rem;
    }
}

@media (max-width: 640px) {
    .container {
        padding: 0 1rem;
    }
}

/* Shimmering pool base canvas */
.pool-wave-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -2;
    background: radial-gradient(circle at 50% 50%, rgba(0, 168, 255, 0.05) 0%, rgba(244, 246, 249, 0) 70%);
    pointer-events: none;
    overflow: hidden;
}

.pool-wave-bg::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    right: -50%;
    bottom: -50%;
    width: 200%;
    height: 200%;
    background: 
        radial-gradient(circle at 30% 40%, rgba(0, 209, 255, 0.04) 0%, transparent 40%),
        radial-gradient(circle at 70% 60%, rgba(0, 85, 255, 0.03) 0%, transparent 45%);
    animation: rotateWaves 35s infinite linear;
}

@keyframes rotateWaves {
    0% { transform: rotate(0deg) translate3d(0, 0, 0); }
    50% { transform: rotate(180deg) translate3d(-10px, 15px, 0); }
    100% { transform: rotate(360deg) translate3d(0, 0, 0); }
}

/* Mouse light refraction tracking canvas */
.interactive-refraction {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    pointer-events: none;
    background: radial-gradient(
        circle 400px at var(--mouse-x) var(--mouse-y),
        rgba(0, 168, 255, 0.08) 0%,
        rgba(0, 85, 255, 0.02) 40%,
        transparent 80%
    );
    transition: background 0.1s ease-out;
}

/* Typography Hierarchy */
.hero-display {
    font-size: 4.5rem;
    line-height: 1.1;
    letter-spacing: -0.03em;
    font-weight: 800;
}

.section-title {
    font-size: 2.25rem;
    line-height: 1.2;
    letter-spacing: -0.02em;
    font-weight: 700;
    margin-bottom: 1rem;
    text-align: center;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

@media (max-width: 768px) {
    .hero-display {
        font-size: 2.5rem;
    }
    .section-title {
        font-size: 1.75rem;
    }
    #hero-section {
        padding: 3.5rem 1rem !important;
    }
    .glass-panel {
        padding: 1.5rem !important;
    }
}

/* Footer styling */
footer {
    margin-top: auto;
    padding: 4rem 0 2rem 0;
    background: rgba(255, 255, 255, 0.45);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: 1px solid var(--glass-border);
    color: var(--text-slate);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.4);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1.5fr 1.5fr 1.5fr;
    gap: 2.5rem;
    text-align: left;
    margin-bottom: 2.5rem;
}

.footer-column h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-navy);
    margin-bottom: 1.2rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.footer-column h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--accent-azure);
    border-radius: 2px;
}

.footer-column p, .footer-column li {
    font-size: 0.9rem;
    color: var(--text-slate);
    line-height: 1.6;
    margin-bottom: 0.75rem;
}

.footer-column ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-column a {
    color: var(--text-slate);
    text-decoration: none;
    transition: var(--transition-apple);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-column a:hover {
    color: var(--accent-azure);
    transform: translateX(4px);
}

.footer-divider {
    border: 0;
    height: 1px;
    background: rgba(0, 85, 255, 0.08);
    margin: 1.5rem 0;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--text-muted);
}

@media (max-width: 992px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
}

@media (max-width: 576px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

/* 12. Global Scrollbar Styling */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--scrollbar-track);
}

::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: var(--radius-sm);
    border: 2px solid transparent;
    background-clip: padding-box;
    transition: var(--transition-fast);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-thumb-hover);
    border: 2px solid transparent;
    background-clip: padding-box;
}

/* Firefox scrollbar support */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Premium micro-interactions & float utilities */
.float-on-hover {
    transition: var(--transition-apple);
}
.float-on-hover:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.scale-on-hover {
    transition: var(--transition-fast);
}
.scale-on-hover:hover {
    transform: scale(1.03);
}

.text-gradient-azure {
    background: linear-gradient(135deg, var(--accent-azure) 0%, var(--accent-blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}