/* CSS Reset & Variables */
:root {
    --bg-color: #ffffff;
    --text-color: #333333;
    --heading-color: #111111;
    --accent-color: #D6001C;
    /* UCalgary Red */
    --highlight-color: #FFCD00;
    /* UCalgary Gold */
    --secondary-color: #666666;
    --card-bg: rgba(255, 255, 255, 0.65);
    --card-border: rgba(255, 255, 255, 0.9);
    --glass-blur: 20px;
    --shadow-color: rgba(214, 0, 28, 0.1);

    --font-ui: 'Outfit', sans-serif;
    --font-heading: 'Playfair Display', serif;

    --transition-speed: 0.4s;
}

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

body {
    font-family: var(--font-ui);
    background-color: var(--bg-color);
    color: var(--text-color);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    /* For the background blobs */
    position: relative;
}

/* Background Animation */
.background-globes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    background: radial-gradient(circle at center, #fffbf0 0%, #ffffff 100%);
    /* Subtle warm tint */
}

.globe {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.4;
    animation: float 20s infinite alternate ease-in-out;
}

.globe-1 {
    top: -10%;
    left: -10%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, var(--accent-color) 0%, transparent 70%);
    opacity: 0.15;
    /* Softer red */
}

.globe-2 {
    bottom: -10%;
    right: -10%;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, var(--highlight-color) 0%, transparent 60%);
    opacity: 0.25;
    /* Softer gold */
    animation-delay: -5s;
}

.globe-3 {
    top: 20%;
    left: 40%;
    width: 30vw;
    height: 30vw;
    background: radial-gradient(circle, #fcd34d 0%, transparent 70%);
    /* Lighter gold/yellow */
    opacity: 0.2;
    animation-delay: -10s;
}

@keyframes float {
    0% {
        transform: translate(0, 0) scale(1);
    }

    100% {
        transform: translate(30px, 50px) scale(1.1);
    }
}

/* Layout */
.app-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    height: 100vh;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    font-weight: 600;
    font-size: 1.5rem;
    letter-spacing: -0.02em;
    opacity: 0.9;
}

/* Controls */
.filter-container select {
    background: white;
    border: 1px solid rgba(0, 0, 0, 0.1);
    color: var(--text-color);
    padding: 0.5rem 1rem;
    border-radius: 9999px;
    /* Pill shape */
    font-family: var(--font-ui);
    font-size: 0.9rem;
    cursor: pointer;
    backdrop-filter: blur(10px);
    transition: all 0.2s ease;
    appearance: none;
    /* Custom dropdown arrow would be nice, but keep it simple for now */
    padding-right: 2rem;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23333333'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1em;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    /* Soft shadow */
}

.filter-container select:hover {
    background-color: #fafafa;
    border-color: var(--secondary-color);
}

.filter-container select:focus {
    outline: none;
    border-color: var(--accent-color);
}

/* Card Stage */
.card-stage {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    perspective: 1000px;
    padding: 2rem 0;
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border-radius: 24px;
    padding: 3rem 2rem;
    width: 100%;
    max-width: 500px;
    min-height: 350px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    text-align: center;
    box-shadow: 0 20px 60px -15px var(--shadow-color), 0 0 0 1px rgba(255, 255, 255, 0.8) inset;
    /* Soft colorful shadow */
    transition: all var(--transition-speed) cubic-bezier(0.34, 1.56, 0.64, 1);
    opacity: 0;
    transform: translateY(20px) scale(0.95);
    animation: cardEntrance 0.8s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

.card.visible {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.card.switching {
    opacity: 0;
    transform: translateY(-20px) scale(0.95);
}

.card-theme {
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    color: var(--accent-color);
    /* Red theme label */
    font-weight: 700;
    margin-bottom: 1.5rem;
    display: block;
}

.separator {
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--highlight-color), transparent);
    margin: 0 auto 2rem;
}

.card-text {
    font-family: var(--font-heading);
    font-size: 2rem;
    line-height: 1.4;
    font-weight: 400;
    font-style: auto;
    /* Playfair Display normal */
    color: var(--heading-color);
    margin-bottom: 1rem;
}

/* Buttons */
.controls {
    display: flex;
    justify-content: center;
    padding-bottom: 3rem;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-color), #b91c1c);
    /* Red gradient */
    color: white;
    border: none;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 500;
    border-radius: 9999px;
    cursor: pointer;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary:active {
    transform: scale(0.96);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.4);
    background: linear-gradient(135deg, var(--accent-color), var(--highlight-color));
}

.btn-primary .icon {
    font-size: 1.2rem;
    transition: transform 0.4s ease;
}

.btn-primary:hover .icon {
    transform: rotate(180deg);
}

/* Secondary Actions */
.back-notification {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    animation: fadeIn 0.5s ease;
}

.back-btn {
    background: transparent;
    border: 1px solid var(--secondary-color);
    color: var(--secondary-color);
    padding: 0.5rem 1.5rem;
    font-size: 0.9rem;
    border-radius: 9999px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.back-btn:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
    background: rgba(214, 0, 28, 0.05);
}

.hidden {
    display: none !important;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Footer */
.app-footer {
    text-align: center;
    padding: 1.5rem;
    color: var(--secondary-color);
    font-size: 0.8rem;
}

/* Mobile Adjustments */
@media (max-width: 640px) {
    .card-text {
        font-size: 1.5rem;
    }

    .card {
        padding: 2rem;
        min-height: 300px;
    }
}

@keyframes cardEntrance {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}