/* Modern font */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700&display=swap');

@font-face {
    font-family: "Core Sans";
    src: url("./CoreSans.ttf");
}

:root {
    --bg: #1e1e2f;
    --card-bg: #2a2a3b;
    --text: #e0e0e8;
    /* dynamic header gradient */
    --day-grad-start: #8E2DE2;
    --day-grad-end: #4A00E0;
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    text-transform: uppercase;
}

body {
    background-color: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    font-family: 'Core Sans', 'Inter', sans-serif, 'Font Awesome 6 Free';
}

/* Weekly abstract background patterns */
body.week-1 {
    background-image: radial-gradient(circle at 25% 30%, rgba(255, 255, 255, 0.05), transparent 50%), radial-gradient(circle at 75% 70%, rgba(255, 255, 255, 0.07), transparent 50%);
}

body.week-2 {
    background-image: radial-gradient(circle at 20% 80%, rgba(200, 200, 255, 0.06), transparent 50%), radial-gradient(circle at 80% 20%, rgba(150, 100, 255, 0.06), transparent 50%);
}

body.week-3 {
    background-image: radial-gradient(circle at 30% 20%, rgba(255, 180, 60, 0.05), transparent 50%), radial-gradient(circle at 70% 80%, rgba(255, 110, 110, 0.07), transparent 50%);
}

body.week-4 {
    background-image: radial-gradient(circle at 15% 15%, rgba(100, 255, 180, 0.06), transparent 50%), radial-gradient(circle at 85% 85%, rgba(60, 120, 255, 0.06), transparent 50%);
}

body.week-5 {
    background-image: radial-gradient(circle at 50% 20%, rgba(255, 90, 180, 0.05), transparent 50%), radial-gradient(circle at 50% 80%, rgba(180, 255, 90, 0.07), transparent 50%);
}

body.week-6 {
    background-image: radial-gradient(circle at 20% 30%, rgba(90, 255, 255, 0.05), transparent 50%), radial-gradient(circle at 80% 70%, rgba(255, 255, 90, 0.07), transparent 50%);
}

body.week-7 {
    background-image: radial-gradient(circle at 25% 75%, rgba(255, 60, 60, 0.06), transparent 50%), radial-gradient(circle at 75% 25%, rgba(60, 255, 180, 0.06), transparent 50%);
}

body.week-8 {
    background-image: radial-gradient(circle at 10% 50%, rgba(180, 90, 255, 0.05), transparent 50%), radial-gradient(circle at 90% 50%, rgba(90, 180, 255, 0.07), transparent 50%);
}

body.week-9 {
    background-image: radial-gradient(circle at 30% 80%, rgba(255, 120, 60, 0.06), transparent 50%), radial-gradient(circle at 70% 20%, rgba(255, 60, 120, 0.06), transparent 50%);
}

body.week-10 {
    background-image: radial-gradient(circle at 50% 30%, rgba(120, 255, 60, 0.05), transparent 50%), radial-gradient(circle at 50% 70%, rgba(60, 255, 120, 0.07), transparent 50%);
}

body.week-11 {
    background-image: radial-gradient(circle at 20% 20%, rgba(255, 255, 60, 0.05), transparent 50%), radial-gradient(circle at 80% 80%, rgba(60, 255, 255, 0.07), transparent 50%);
}

body.week-12 {
    background-image: radial-gradient(circle at 15% 85%, rgba(180, 60, 255, 0.06), transparent 50%), radial-gradient(circle at 85% 15%, rgba(255, 180, 60, 0.06), transparent 50%);
}

header {
    padding: 2rem;
    text-align: center;
    background: linear-gradient(135deg, var(--day-grad-start), var(--day-grad-end));
    position: relative;
}

header h1 {
    color: #fff;
    font-weight: 700;
    font-size: 2rem;
    letter-spacing: 2px;
    margin-bottom: 0.5rem;
}

header h3 {
    color: #fff;
    font-weight: 700;
    font-size: 1rem;
    letter-spacing: 2px;
    margin-bottom: 0.5rem;
}

.container {
    flex: 1;
    padding: 1rem 2rem;
    max-width: 800px;
    margin: auto;
}

/* Controls */
.controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1.5rem;

}

.controls button,
.week-display {
    border: none;
    padding: 0.5rem 1rem;
    background: var(--card-bg);
    color: var(--text);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    border-radius: 0.2rem;
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.6);
}

.controls button:hover {
    opacity: 0.8;
}

.week-display {
    cursor: default;
}

/* Card styling */
.card {
    background: var(--card-bg);
    padding: 1rem;
    border-radius: 0.25rem;
    overflow: hidden;
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.6);
    max-width: 26.5rem;
}

.card-header {
    background: linear-gradient(135deg, var(--day-grad-start), var(--day-grad-end));
    padding: 1rem;
    margin: -1rem -1rem 1rem;
}

.card-header h2 {
    color: #fff;
    font-size: 1.5rem;
    font-weight: 600;
}


.exercise-list {
    display: grid;
    gap: 1rem;
}

.exercise-item {
    background: rgba(255, 255, 255, 0.05);
    padding: 1rem;
    border-radius: 0.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.exercise-item h3 {
    margin: 0;
    font-weight: 600;
    font-size: 1.2rem;
}

.rest-day {
    text-align: center;
}

.rest-day i {
    font-size: 2.5rem;
    display: block;
    margin: 1rem auto;
}


.details {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 0.75rem;
}

.detail {
    flex: 1 1 100%;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.1);
    padding: 0.5rem;
    border-radius: 0.25rem;
    font-size: 0.8rem;
    color: var(--text);
    text-decoration: none;
}

.detail i {
    font-size: 1rem;
}

.tooltip {
    position: relative;
}

.tooltip .tooltip-text {
    visibility: hidden;
    background-color: var(--bg);
    text-align: center;
    padding: 0.2rem 0.3rem;
    border-radius: 0.2rem;
    position: absolute;
    z-index: 1;
    bottom: 125%;
    /* show above the icon */
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    transition: opacity 0.3s;
    white-space: nowrap;
}

.tooltip.show .tooltip-text,
.tooltip:hover .tooltip-text {
    visibility: visible;
    opacity: 1;
}

.tooltip i {
    margin-right: 0.2rem;
}


@media (max-width: 600px) {
    .container {
        padding: 1rem;
        margin-top: 1rem;
    }

    header h1 {
        font-size: 1.5rem;
    }

    .controls {
        flex-wrap: wrap;
    }
}

.card-header.exercise {
    background: rgba(255, 255, 255, 0.1);
}

.cardio-card {

    margin-bottom: 1rem;
    padding: 1rem;
}

.cardio-card .card-header {
    background: rgba(255, 255, 255, 0.1);
}

.cardio-card .card-header.cardio h3 {
    font-size: 1.2rem;
    margin: 0 0 0.5rem 0;
}

.cardio-details p {
    margin: 0.2rem 0;
}

.full-row {
    flex: 1 1 100%;
    width: 100%;
}


.split-row {
    flex: 1 1 30%;
}


.logo {
    height: 4rem;
    vertical-align: middle;
    margin-bottom: 1rem;
}