/* css/style.css */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(145deg, #0f0f1a 0%, #1a1a2e 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    color: #eaeef2;
}

.app-wrapper {
    max-width: 700px;
    width: 100%;
    margin: 0 auto;
}

/* SEO header – subtle but present for crawlers */
.app-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.seo-title {
    font-size: 1.8rem;
    font-weight: 400;
    letter-spacing: -0.01em;
    background: linear-gradient(135deg, #d9e2ec, #a5b9ce);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 0.25rem;
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.seo-tagline {
    font-size: 0.9rem;
    font-weight: 300;
    color: #9aaec2;
    letter-spacing: 0.3px;
}

/* Main clock card — glassmorphism */
.clock-card {
    background: rgba(25, 30, 40, 0.65);
    backdrop-filter: blur(18px) saturate(180%);
    -webkit-backdrop-filter: blur(18px) saturate(180%);
    border-radius: 3.5rem;
    padding: 2rem 2rem 1.8rem;
    box-shadow: 0 25px 40px -10px rgba(0, 0, 0, 0.6),
        0 0 0 1px rgba(255, 255, 255, 0.05) inset;
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: box-shadow 0.3s ease;
}

/* View selector tabs */
.view-selector {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.view-btn {
    background: transparent;
    border: none;
    padding: 0.7rem 2.2rem;
    font-size: 1.1rem;
    font-weight: 500;
    font-family: 'Inter', sans-serif;
    color: #b4c6d9;
    border-radius: 60px;
    cursor: pointer;
    backdrop-filter: blur(5px);
    background: rgba(20, 30, 45, 0.4);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.03);
    transition: all 0.2s cubic-bezier(0.23, 1, 0.32, 1);
    letter-spacing: 0.3px;
}

.view-btn:hover {
    background: rgba(60, 80, 110, 0.3);
    color: #e2ecf5;
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-1px);
}

.view-btn.active {
    background: rgba(210, 225, 245, 0.12);
    color: white;
    box-shadow: 0 8px 18px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(210, 225, 255, 0.2) inset;
    border-color: rgba(255, 255, 255, 0.2);
    font-weight: 600;
}

/* Clock display area */
.clock-display {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 380px;
    margin-bottom: 0.5rem;
}

/* Analog canvas */
.analog-canvas {
    display: block;
    max-width: 100%;
    height: auto;
    width: min(400px, 85vw);
    border-radius: 50%;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.05);
    background: radial-gradient(circle at 30% 30%, #2a3440, #141a22);
    transition: opacity 0.25s;
}

/* Digital panel */
.digital-panel {
    text-align: center;
    padding: 1.5rem 1rem;
    width: 100%;
}

.digital-panel.hidden,
.analog-canvas.hidden {
    display: none;
}

.time-digits {
    font-size: clamp(3.5rem, 18vw, 6rem);
    font-weight: 500;
    letter-spacing: 6px;
    background: linear-gradient(135deg, #f0f6ff, #cbd6e6);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: 0 2px 15px rgba(0, 0, 0, 0.3);
    line-height: 1.2;
    font-feature-settings: "tnum";
}

.date-digits {
    font-size: 1.5rem;
    font-weight: 300;
    color: #b7cdE0;
    margin-top: 0.5rem;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.period-badge {
    display: inline-block;
    margin-top: 0.8rem;
    font-size: 1.1rem;
    font-weight: 400;
    background: rgba(200, 220, 250, 0.08);
    padding: 0.3rem 1.2rem;
    border-radius: 40px;
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #d6e6ff;
}

/* Action bar */
.action-bar {
    display: flex;
    justify-content: center;
    margin-top: 1.5rem;
}

.fullscreen-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 0.75rem 2rem;
    border-radius: 60px;
    font-size: 1rem;
    font-weight: 500;
    color: #dee9f2;
    backdrop-filter: blur(8px);
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 5px 12px rgba(0, 0, 0, 0.2);
}

.fullscreen-btn:hover {
    background: rgba(160, 190, 230, 0.15);
    border-color: rgba(255, 255, 255, 0.25);
    transform: scale(1.02);
    color: white;
}

.fullscreen-btn svg {
    stroke: #c6daff;
}

/* Footer */
.app-footer {
    margin-top: 2rem;
    text-align: center;
    font-size: 0.8rem;
    font-weight: 300;
    color: #7b8da3;
    letter-spacing: 1px;
}

/* fullscreen adjustments */
.clock-card:fullscreen {
    background: #0b0e14;
    backdrop-filter: none;
    border-radius: 0;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    height: 100vh;
    width: 100vw;
}

.clock-card:fullscreen .clock-display {
    flex: 1;
    align-items: center;
}

/* Responsive */
/* ========================================================= */
/* Responsive Design: Tablets, Large Mobiles, & Small Phones */
/* ========================================================= */

/* Tablet (Portrait & Landscape) - up to 900px */
@media (max-width: 900px) {
    .clock-card {
        padding: 2rem 1.5rem;
        border-radius: 3rem;
    }
}

/* Large Mobile / Small Tablet - up to 768px */
@media (max-width: 768px) {
    .app-wrapper {
        max-width: 95%;
    }

    .seo-title {
        font-size: 1.6rem;
    }

    /* Make touch targets slightly more compact but still easy to tap */
    .view-btn {
        padding: 0.6rem 1.8rem;
        font-size: 1.05rem;
    }

    .clock-display {
        min-height: 340px;
    }

    .analog-canvas {
        width: min(340px, 80vw);
    }

    .time-digits {
        letter-spacing: 4px;
    }
}

/* Standard Mobile (Replaces your original 480px rule) - up to 480px */
@media (max-width: 480px) {
    body {
        padding: 1rem;
    }

    .clock-card {
        padding: 1.5rem 1rem;
        border-radius: 2rem;
    }

    .seo-title {
        font-size: 1.3rem;
        margin-bottom: 0.5rem;
    }

    .view-selector {
        gap: 0.5rem;
    }

    .view-btn {
        padding: 0.5rem 1.2rem;
        font-size: 0.95rem;
    }

    .clock-display {
        min-height: 280px;
    }

    .analog-canvas {
        width: min(280px, 85vw);
    }

    .time-digits {
        letter-spacing: 2px;
    }

    .date-digits {
        font-size: 1.2rem;
    }

    .fullscreen-btn {
        padding: 0.6rem 1.5rem;
        font-size: 0.9rem;
    }
}

/* Very Small Mobile (e.g., iPhone SE) - up to 360px */
@media (max-width: 360px) {
    .clock-card {
        padding: 1.2rem 0.8rem;
        border-radius: 1.5rem;
    }

    .seo-title {
        font-size: 1.15rem;
    }

    .view-btn {
        padding: 0.4rem 0.8rem;
        font-size: 0.85rem;
    }

    .analog-canvas {
        width: min(240px, 90vw);
    }

    .date-digits {
        font-size: 1rem;
    }
}