/* --- THEME DEFINITIONS --- */
:root {
    /* DARK MODE (PREMIUM LUX) */
    --bg: #050505;
    --surface: #111111;
    --border: rgba(255, 255, 255, 0.08);
    --text-main: #ffffff;
    --text-dim: #88888e;
    --accent: #ea141e; /* Luxembourg Red */
    --accent-glow: rgba(234, 20, 30, 0.2);
    --success: #00a3e0; /* Luxembourg Sky Blue */
    --ghost-color: #ffffff;
    --hero-gradient: linear-gradient(180deg, #ffffff 0%, #ea141e 100%);
    --upload-grad: linear-gradient(145deg, #1a1a1a, #0a0a0a);
    --nav-blur: rgba(5, 5, 5, 0.8);

    /* DARK MODE PRO GOLD */
    --pro-bg: linear-gradient(135deg, #f5d142 0%, #d4af37 100%);
    --pro-text: #000000;
    --pro-glow: rgba(212, 175, 55, 0.3);
}

[data-theme="light"] {
    /* LIGHT MODE (PREMIUM LUX) */
    --bg: #f5f5f7;
    --surface: #ffffff;
    --border: rgba(0, 0, 0, 0.06);
    --text-main: #1d1d1f;
    --text-dim: #86868b;
    --accent: #00a3e0; /* Luxembourg Sky Blue */
    --accent-glow: rgba(0, 163, 224, 0.2);
    --success: #ea141e; /* Luxembourg Red */
    --ghost-color: #000000;
    --hero-gradient: linear-gradient(180deg, #ea141e 0%, #00a3e0 100%);
    --upload-grad: linear-gradient(145deg, #ffffff, #f5f5f7);
    --nav-blur: rgba(245, 245, 247, 0.8);

    /* LIGHT MODE PRO GOLD (Slightly higher contrast) */
    --pro-bg: linear-gradient(135deg, #d4af37 0%, #b8860b 100%);
    --pro-text: #ffffff;
    --pro-glow: rgba(184, 134, 11, 0.2);
}
/* --- BASE STYLES --- */
body {
    margin: 0; padding: 0; 
    background: var(--bg); 
    color: var(--text-main);
    font-family: -apple-system, BlinkMacSystemFont, "Inter", sans-serif;
    transition: background 0.5s cubic-bezier(0.4, 0, 0.2, 1); 
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* --- GHOST TYPOGRAPHY --- */
.ghost-typography {
    position: fixed;
    top: 55%; left: 50%;
    transform: translate(-50%, -50%);
    font-size: 25vw; font-weight: 900;
    color: var(--ghost-color);
    opacity: 0.02; 
    pointer-events: none; z-index: -1;
    line-height: 1; letter-spacing: -0.05em;
    transition: all 0.8s cubic-bezier(0.2, 1, 0.3, 1);
    white-space: nowrap;
}

/* --- NAVIGATION --- */
nav {
    position: sticky; top: 0; z-index: 100;
    background: var(--nav-blur);
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}
.nav-content {
    max-width: 1100px; margin: 0 auto; padding: 15px 20px;
    display: flex; justify-content: space-between; align-items: center;
}
.logo { font-weight: 800; font-size: 1.3rem; letter-spacing: -0.8px; }
.nav-stats { font-size: 0.85rem; color: var(--accent); font-weight: 600; }
.icon-btn { 
    background: none; border: 1px solid var(--border); 
    padding: 8px; border-radius: 10px; cursor: pointer; color: var(--text-main);
}

/* --- HERO & UPLOAD AREA --- */
.hero { padding: 80px 20px; display: flex; flex-direction: column; align-items: center; }

.hero h1 {
    font-size: 4rem; margin: 0 0 10px 0;
    background: var(--hero-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.04em;
    text-align: center; font-weight: 800;
}
.hero p { color: var(--text-dim); margin-bottom: 40px; font-size: 1.1rem; }

.upload-area {
    width: 100%; max-width: 620px; position: relative;
    border-radius: 40px; 
    background: var(--upload-grad);
    box-shadow: 0 40px 100px rgba(0,0,0,0.2);
    padding: 2px; 
    transition: all 0.4s cubic-bezier(0.2, 1, 0.3, 1);
    cursor: pointer;
}
.upload-area:hover { transform: translateY(-4px) scale(1.01); }

.glass-inner {
    padding: 60px 40px; border-radius: 38px; 
    border: 1px solid var(--border);
    display: flex; flex-direction: column; align-items: center;
    background: transparent;
}

.upload-icon { color: var(--accent); margin-bottom: 20px; opacity: 0.8; }

/* --- OPTIONS PILL --- */
.options-pill {
    display: flex; align-items: center; gap: 15px;
    background: rgba(128, 128, 128, 0.08); padding: 10px 24px;
    border-radius: 100px; border: 1px solid var(--border);
    backdrop-filter: blur(10px); color: var(--text-main);
    font-size: 0.9rem; margin-top: 20px;
}
.options-pill select { background: transparent; color: inherit; border: none; font-weight: 600; cursor: pointer; outline: none; }
.divider { width: 1px; height: 16px; background: var(--border); }

/* --- RESULTS GRID --- */
.results-container { max-width: 1100px; margin: 0 auto; padding: 0 20px 100px; }
.results-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 30px; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 30px; }

.card {
    background: var(--surface); border-radius: 30px; padding: 18px;
    border: 1px solid var(--border); transition: all 0.3s ease;
    animation: reveal 0.6s cubic-bezier(0.2, 1, 0.3, 1) backwards;
}
@keyframes reveal { from { opacity: 0; transform: translateY(30px); } }

.img-box {
    position: relative; height: 180px; border-radius: 20px; overflow: hidden;
    background: #000; cursor: help;
}
.img-box img { width: 100%; height: 100%; object-fit: contain; transition: 0.5s ease; }
.img-orig { position: absolute; top: 0; left: 0; opacity: 0; z-index: 2; }

.img-box:hover .img-orig { opacity: 1; }
.img-box:hover .img-comp { opacity: 0.2; transform: scale(1.05); }

.status-pill {
    position: absolute; bottom: 12px; left: 12px; z-index: 10;
    background: rgba(0, 0, 0, 0.7); backdrop-filter: blur(8px);
    color: white; font-size: 10px; padding: 5px 12px; border-radius: 20px;
    text-transform: uppercase; letter-spacing: 0.05em; font-weight: 700;
}
.status-pill::after { content: "Compressed"; }
.img-box:hover .status-pill::after { content: "Original"; }

.card-footer { margin: 15px 0; display: flex; justify-content: space-between; align-items: center; }
.reduction { 
    background: rgba(16, 185, 129, 0.12); color: var(--success); 
    padding: 4px 10px; border-radius: 8px; font-weight: 800; font-size: 12px; 
}

/* --- BUTTONS --- */
.btn-primary {
    background: var(--accent); color: white; border: none;
    padding: 12px 24px; border-radius: 14px; font-weight: 600;
    box-shadow: 0 4px 15px var(--accent-glow);
    transition: all 0.2s ease; cursor: pointer; text-decoration: none;
}
.btn-primary:hover {
    filter: brightness(1.1); transform: translateY(-1px);
    box-shadow: 0 8px 25px var(--accent-glow);
}


/* --- LUXEMBOURG BRAND BASE --- */
.brand-wrapper {
    display: inline-flex;
    flex-direction: column;
    align-items: stretch; /* Forces flag to match text width */
    cursor: pointer;
    transition: transform 0.2s ease;
}

.brand-wrapper:hover {
    transform: translateY(-1px);
}

.logo {
    font-weight: 900;
    font-size: 2.2rem; /* Slightly bigger for impact */
    letter-spacing: -1.8px;
    line-height: 0.9;  /* Pulls text closer to the flag */
    margin-bottom: 6px;
    color: var(--text-main);
}

.logo-row {
    display: flex;
    align-items: baseline; /* Aligns PRO with the bottom of the text */
    gap: 8px;
}

.badge-pro {
    background: var(--pro-bg);
    color: var(--pro-text);
    font-size: 10px;
    font-weight: 900;
    padding: 2px 6px;
    border-radius: 4px;
    letter-spacing: 0.05em;
    box-shadow: 0 2px 10px var(--pro-glow);
    position: relative;
    top: -4px; /* Adjust based on your logo font size */
    user-select: none;
    transition: transform 0.3s ease;
}

.brand-wrapper:hover .badge-pro {
    transform: translateY(-12px) rotate(-10deg); /* Subtle "pop" on hover */
}


.brand-wrapper:hover .badge-pro::after {
    left: 150%;
}


.lux-flag-underline {
    display: flex;
    flex-direction: column;
    height: 6px; /* Total height of the flag underline */
    border-radius: 2px;
    overflow: hidden; /* Clips the corners of the stripes */
}

.lux-flag-underline .stripe {
    flex: 1; /* Each stripe takes 1/3 of the height */
    width: 100%;
}

/* Official Colors */
.stripe.red { background-color: #ea141e; }
.stripe.white { background-color: #ffffff; }
.stripe.blue { background-color: #00a3e0; }

/* Visibility fix for Light Mode */
[data-theme="light"] .stripe.white {
    background-color: #f5f5f7; /* Matches light bg or use #fff with a tiny shadow */
    box-shadow: inset 0 0 0 0.5px rgba(0,0,0,0.05);
}

/* Subtle glow effect in Dark Mode */
[data-theme="dark"] .lux-flag-underline {
    box-shadow: 0 4px 12px rgba(234, 20, 30, 0.15);
}


.theme-icon {
    width: 22px;
    height: 22px;
    stroke: var(--text-main);
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    transition: all 0.4s ease;
}

/* SUN */
.sun {
    transform-origin: center;
    transition: transform 0.5s ease, opacity 0.4s ease;
}

/* RAYS */
.rays line {
    transition: all 0.4s ease;
}

/* MOON */
.moon {
    fill: var(--text-main);
    stroke: none;
    opacity: 0;
    transform: scale(0.6);
    transform-origin: center;
    transition: all 0.5s ease;
}

/* 🌙 DARK MODE STATE */
[data-theme="dark"] .sun {
    transform: scale(0.6);
    opacity: 0;
}

[data-theme="dark"] .rays line {
    opacity: 0;
    transform: scale(0.5);
}

[data-theme="dark"] .moon {
    opacity: 1;
    transform: scale(1);
}

/* ☀️ LIGHT MODE STATE */
[data-theme="light"] .sun {
    transform: scale(1);
    opacity: 1;
}

[data-theme="light"] .rays line {
    opacity: 1;
}

[data-theme="light"] .moon {
    opacity: 0;
    transform: scale(0.6);
}

.icon-btn:hover {
    border-color: var(--accent);
    box-shadow: 0 0 12px var(--accent-glow);
    transform: translateY(-1px);
}


/* --- FOOTER --- */
.minimal-footer { padding: 60px 20px; text-align: center; }
.privacy-pill {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 10px 24px;
    border-radius: 100px;
    font-size: 0.85rem;
    color: var(--text-dim);
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s ease;
}

.privacy-pill:hover {
    border-color: var(--accent); /* That Lux Red or Blue */
    color: var(--text-main);
    transform: translateY(-2px);
}

/* --- DRAG OVER STATE --- */
.upload-area.drag-over {
    border-color: var(--accent);
    box-shadow: 0 0 50px var(--accent-glow);
    transform: scale(1.02);
}