/* ============================================================
   Animal Words Game — CCPS3513 Web Programming Final Project
   Aesthetic: playful storybook (cream paper + chunky display)
   ============================================================ */

:root {
    --color-bg:        #f5ead4;
    --color-paper:     #f7efde;
    --color-ink:       #3a2a1f;
    --color-ink-soft:  #6b5440;
    --color-sage:      #6b8e6b;
    --color-coral:     #e8826e;
    --color-coral-dk:  #c25d4a;
    --color-gold:      #e8b34a;
    --color-shadow:    rgba(58, 42, 31, 0.18);
    --color-shadow-lg: rgba(58, 42, 31, 0.28);

    --font-display: 'Fredoka', system-ui, sans-serif;
    --font-body:    'Patrick Hand', cursive;

    --radius-sm: 12px;
    --radius-md: 20px;
    --radius-lg: 32px;
}

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

html, body {
    height: 100%;
}

body {
    font-family: var(--font-body);
    color: var(--color-ink);
    background-color: var(--color-bg);
    background-image:
        radial-gradient(circle at 20% 10%, rgba(232, 130, 110, 0.10) 0%, transparent 40%),
        radial-gradient(circle at 80% 90%, rgba(107, 142, 107, 0.10) 0%, transparent 40%),
        repeating-linear-gradient(
            45deg,
            transparent 0px,
            transparent 28px,
            rgba(58, 42, 31, 0.025) 28px,
            rgba(58, 42, 31, 0.025) 29px
        );
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

/* ----------- HEADER ----------- */

.site-header {
    padding: 1.25rem 1rem;
    text-align: center;
    border-bottom: 3px dashed var(--color-ink-soft);
    background-color: rgba(247, 239, 222, 0.6);
}

.nav {
    max-width: 1100px;
    margin: 0 auto;
}

.title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(1.6rem, 4vw, 2.6rem);
    letter-spacing: 0.5px;
    color: var(--color-ink);
    text-shadow:
        2px 2px 0 var(--color-coral),
        4px 4px 0 var(--color-shadow);
}

/* ----------- STAGE / SCREENS ----------- */

.stage {
    flex: 1;
    position: relative;
    padding: 2rem 1rem;
}

.screen {
    display: none;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.screen.is-active {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    animation: fade-in 0.5s ease-out;
}

@keyframes fade-in {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ----------- LANDING ----------- */

.tagline {
    font-family: var(--font-display);
    font-weight: 500;
    font-size: clamp(1.2rem, 2.5vw, 1.6rem);
    color: var(--color-ink-soft);
    margin-top: 1rem;
}

.subtitle {
    font-size: 1.1rem;
    color: var(--color-ink-soft);
    font-style: italic;
}

/* ----------- CIRCLE BUTTON ----------- */

.circle-button {
    width: 220px;
    height: 220px;
    border-radius: 50%;
    border: none;
    background: radial-gradient(circle at 35% 35%, #f4a594 0%, var(--color-coral) 55%, var(--color-coral-dk) 100%);
    color: white;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 2.4rem;
    letter-spacing: 2px;
    cursor: pointer;
    box-shadow:
        0 12px 0 var(--color-coral-dk),
        0 20px 35px var(--color-shadow-lg);
    transition: transform 0.12s ease, box-shadow 0.12s ease;
    animation: pulse 2.2s ease-in-out infinite;
    position: relative;
}

.circle-button::after {
    content: '';
    position: absolute;
    inset: 8px;
    border-radius: 50%;
    border: 3px dashed rgba(255, 255, 255, 0.5);
    pointer-events: none;
}

.circle-button:hover {
    transform: translateY(-4px);
    box-shadow:
        0 16px 0 var(--color-coral-dk),
        0 24px 40px var(--color-shadow-lg);
}

.circle-button:active {
    transform: translateY(6px);
    box-shadow:
        0 6px 0 var(--color-coral-dk),
        0 10px 20px var(--color-shadow);
}

.circle-button--small {
    width: 160px;
    height: 160px;
    font-size: 1.4rem;
    box-shadow:
        0 10px 0 var(--color-coral-dk),
        0 16px 28px var(--color-shadow-lg);
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50%      { transform: scale(1.04); }
}

/* ----------- GAME BOARD ----------- */

.board {
    display: grid;
    grid-template-columns: 1fr 2fr 1fr;
    gap: 1rem;
    align-items: stretch;
    width: 100%;
}

.rail {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 1rem;
    background-color: var(--color-paper);
    border: 3px dashed var(--color-ink-soft);
    border-radius: var(--radius-md);
    min-height: 480px;
    box-shadow: 0 8px 0 var(--color-shadow);
}

/* ----------- STICKERS ----------- */

.sticker {
    width: 100%;
    max-width: 110px;
    aspect-ratio: 1;
    margin: 0 auto;
    object-fit: contain;
    cursor: grab;
    user-select: none;
    -webkit-user-drag: element;
    filter: drop-shadow(3px 4px 0 var(--color-shadow));
    transition: transform 0.15s ease, filter 0.15s ease;
    animation: idle-wobble 4s ease-in-out infinite;
}

.sticker:nth-child(2n) { animation-delay: 0.3s; }
.sticker:nth-child(3n) { animation-delay: 0.6s; }

.sticker:hover {
    transform: scale(1.1) rotate(-3deg);
    filter: drop-shadow(5px 6px 0 var(--color-shadow-lg));
}

.sticker.is-dragging {
    opacity: 0.5;
    transform: scale(0.9);
}

@keyframes idle-wobble {
    0%, 100% { transform: rotate(-2deg); }
    50%      { transform: rotate(2deg);  }
}

/* ----------- JAR ----------- */

.jar {
    position: relative;
    background-color: rgba(209, 225, 223, 0.55);
    border: 3px solid var(--color-ink-soft);
    border-radius: var(--radius-lg);
    padding: 2.5rem 1.5rem 2rem;
    min-height: 480px;
    box-shadow:
        inset 0 0 40px rgba(255, 255, 255, 0.5),
        0 12px 0 var(--color-shadow),
        0 20px 35px var(--color-shadow-lg);
}

.jar__top {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    width: 70%;
    height: 28px;
    background: linear-gradient(180deg, #c8d8d6, #a4b8b6);
    border: 3px solid var(--color-ink-soft);
    border-radius: 14px;
    box-shadow: 0 4px 0 var(--color-shadow);
}

.jar__bottom {
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    height: 16px;
    background-color: #a4b8b6;
    border: 3px solid var(--color-ink-soft);
    border-radius: 12px;
}

.jar__dirt {
    position: absolute;
    bottom: 8px;
    left: 8%;
    right: 8%;
    height: 18px;
    background: linear-gradient(180deg, #6e4a32 0%, var(--color-ink) 100%);
    border-radius: 0 0 18px 18px;
    opacity: 0.85;
}

/* ----------- SLOTS ----------- */

.slots {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.75rem;
    height: 100%;
}

.slot {
    aspect-ratio: 1;
    background-color: rgba(247, 239, 222, 0.75);
    border: 3px dashed var(--color-sage);
    border-radius: var(--radius-sm);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--color-sage);
    letter-spacing: 1px;
    padding: 0.25rem;
    transition: transform 0.15s ease, background-color 0.15s ease, border-color 0.15s ease;
}

.slot.is-hover {
    background-color: rgba(232, 179, 74, 0.25);
    border-color: var(--color-gold);
    transform: scale(1.05);
}

.slot.is-filled {
    background-color: rgba(155, 184, 158, 0.35);
    border-style: solid;
    border-color: var(--color-sage);
    color: transparent;
    padding: 0.35rem;
}

.slot.is-filled img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    animation: pop-in 0.4s ease-out;
}

.slot.is-shake {
    animation: shake 0.45s ease-in-out;
    background-color: rgba(232, 130, 110, 0.25);
    border-color: var(--color-coral);
}

@keyframes pop-in {
    0%   { transform: scale(0.4) rotate(-15deg); opacity: 0; }
    60%  { transform: scale(1.15) rotate(5deg);  opacity: 1; }
    100% { transform: scale(1)    rotate(0);     opacity: 1; }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20%      { transform: translateX(-8px); }
    40%      { transform: translateX(8px);  }
    60%      { transform: translateX(-6px); }
    80%      { transform: translateX(4px);  }
}

/* ----------- TOAST ----------- */

.toast {
    position: fixed;
    top: 6rem;
    left: 50%;
    transform: translateX(-50%) translateY(-30px);
    background-color: var(--color-sage);
    color: white;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.4rem;
    padding: 1rem 2rem;
    border-radius: var(--radius-md);
    box-shadow: 0 8px 0 rgba(58, 42, 31, 0.4);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease, transform 0.25s ease;
    z-index: 100;
}

.toast.is-show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.toast.is-error {
    background-color: var(--color-coral);
}

/* ----------- WIN SCREEN ----------- */

.win-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(3rem, 8vw, 6rem);
    color: var(--color-coral);
    text-shadow:
        3px 3px 0 var(--color-gold),
        6px 6px 0 var(--color-shadow);
    animation: bounce-in 0.7s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.win-subtitle {
    font-size: 1.4rem;
    color: var(--color-ink-soft);
}

@keyframes bounce-in {
    0%   { transform: scale(0) rotate(-10deg); opacity: 0; }
    60%  { transform: scale(1.2) rotate(3deg); opacity: 1; }
    100% { transform: scale(1) rotate(0);      opacity: 1; }
}

.confetti {
    position: absolute;
    top: 0; left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
}

.confetti::before,
.confetti::after {
    content: '';
    position: absolute;
    top: -20%;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle, var(--color-coral) 35%, transparent 38%) 0 0,
        radial-gradient(circle, var(--color-sage)  35%, transparent 38%) 30px 60px,
        radial-gradient(circle, var(--color-gold)  35%, transparent 38%) 80px 20px,
        radial-gradient(circle, var(--color-coral) 35%, transparent 38%) 130px 80px,
        radial-gradient(circle, var(--color-sage)  35%, transparent 38%) 180px 40px,
        radial-gradient(circle, var(--color-gold)  35%, transparent 38%) 230px 90px;
    background-repeat: repeat;
    background-size: 260px 130px;
    animation: confetti-fall 4s linear infinite;
    opacity: 0.85;
}

.confetti::after {
    animation-delay: -2s;
    animation-duration: 3.2s;
    opacity: 0.6;
    transform: translateX(40px);
}

@keyframes confetti-fall {
    from { transform: translateY(-100px) rotate(0deg); }
    to   { transform: translateY(120vh)  rotate(360deg); }
}

/* ----------- FOOTER ----------- */

.site-footer {
    padding: 1rem;
    text-align: center;
    border-top: 3px dashed var(--color-ink-soft);
    color: var(--color-ink-soft);
    font-size: 0.95rem;
}

/* ----------- RESPONSIVE ----------- */

@media (max-width: 800px) {
    .board {
        grid-template-columns: 1fr;
    }
    .rail {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        min-height: auto;
    }
    .sticker {
        max-width: 80px;
    }
    .slots {
        grid-template-columns: repeat(4, 1fr);
    }
    .circle-button {
        width: 180px;
        height: 180px;
        font-size: 2rem;
    }
}