/* ============================================================
   WINDOWS 7 AERO — MODERNIZED + MEDIUM GLASS + SEGOE UI
   Includes: 5‑image slideshow, crossfade, Ken Burns zoom
   ============================================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Segoe UI", sans-serif;
}

body {
    color: #fff;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    padding: 60px 20px;
    overflow-x: hidden;
}

/* ============================================================
   BACKGROUND SLIDESHOW (5 IMAGES)
   ============================================================ */

.bg-slideshow {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: -1;
}

.bg-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    opacity: 0;
    animation: fadeKenBurns 40s infinite;
    transform: scale(1.1);
}

.bg1 { background-image: url('https://wallpapercave.com/wp/46EGJFv.jpg'); animation-delay: 0s; }
.bg2 { background-image: url('https://wallpapercave.com/wp/wp1816711.jpg'); animation-delay: 8s; }
.bg3 { background-image: url('https://wallpapercave.com/wp/wp9165421.jpg'); animation-delay: 16s; }
.bg4 { background-image: url('https://wallpapercave.com/wp/wp2596334.jpg'); animation-delay: 24s; }
.bg5 { background-image: url('https://wallpapercave.com/wp/wp2596335.jpg'); animation-delay: 32s; }

@keyframes fadeKenBurns {
    0%   { opacity: 0; transform: scale(1.1); }
    10%  { opacity: 1; transform: scale(1.0); }
    40%  { opacity: 1; transform: scale(1.0); }
    60%  { opacity: 0; transform: scale(1.1); }
    100% { opacity: 0; }
}

/* ============================================================
   WINDOWS‑7 AERO CONTAINER
   ============================================================ */

.container {
    width: 900px;
    background: rgba(255, 255, 255, 0.18);
    border-radius: 14px;
    padding: 30px;
    backdrop-filter: blur(18px);
    border: 1px solid rgba(255, 255, 255, 0.35);
    box-shadow:
        0 0 25px rgba(0, 0, 0, 0.45),
        inset 0 0 20px rgba(255, 255, 255, 0.25);
}

/* ============================================================
   NAVIGATION BAR (Aero Tabs)
   ============================================================ */

.nav {
    display: flex;
    gap: 20px;
    margin-bottom: 25px;
}

.nav a {
    color: #e6f2ff;
    text-decoration: none;
    padding: 8px 14px;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    transition: 0.2s;
    border: 1px solid rgba(255, 255, 255, 0.25);
}

.nav a:hover {
    background: rgba(255, 255, 255, 0.28);
    box-shadow: 0 0 10px rgba(173, 216, 255, 0.7);
}

/* ============================================================
   HEADINGS & TEXT
   ============================================================ */

h1 {
    font-size: 38px;
    margin-bottom: 10px;
    text-shadow: 0 0 8px rgba(255, 255, 255, 0.6);
}

.subtitle {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 25px;
}

.section {
    margin-bottom: 30px;
}

.section h2 {
    font-size: 26px;
    margin-bottom: 10px;
    text-shadow: 0 0 6px rgba(255, 255, 255, 0.5);
}

.section p,
.section ul {
    font-size: 17px;
    line-height: 1.6;
}

.section ul {
    margin-left: 20px;
}

/* ============================================================
   LINK GRID (Aero Cards)
   ============================================================ */

.link-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 15px;
    margin-top: 15px;
}

.card {
    display: block;
    text-align: center;
    padding: 12px 0;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.18);
    backdrop-filter: blur(14px);
    border: 1px solid rgba(255, 255, 255, 0.35);
    color: #e6f2ff;
    text-decoration: none;
    font-size: 17px;
    transition: 0.25s;
    box-shadow:
        inset 0 0 12px rgba(255, 255, 255, 0.25),
        0 0 12px rgba(0, 0, 0, 0.35);
}

.card:hover {
    background: rgba(255, 255, 255, 0.28);
    box-shadow:
        inset 0 0 18px rgba(255, 255, 255, 0.35),
        0 0 14px rgba(173, 216, 255, 0.7);
    transform: translateY(-2px);
}

/* ============================================================
   WINDOWS‑7 TASKBAR FOOTER
   ============================================================ */

.taskbar {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 42px;
    background: rgba(30, 60, 120, 0.55);
    backdrop-filter: blur(12px);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.25);
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.4);
}

.start-button {
    font-size: 20px;
}

.taskbar-center {
    font-size: 16px;
    opacity: 0.9;
}

.taskbar-right {
    font-size: 14px;
    opacity: 0.8;
}