/* FONTS */
@font-face {
    font-family: "BebasNeue";
    src: url(../assets/fonts/BebasNeue.woff) format("woff"),
         url(../assets/fonts/BebasNeue.woff2) format("woff2");
    font-display: swap;
}

@font-face {
    font-family: "DMSans";
    src: url(../assets/fonts/DMSans.woff) format("woff"),
         url(../assets/fonts/DMSans.woff2) format("woff2");
    font-display: swap;
}

@font-face {
    font-family: "DMMono";
    src: url(../assets/fonts/DMMono.woff) format("woff"),
         url(../assets/fonts/DMMono.woff2) format("woff2");
    font-display: swap;
}

/* CONFIG */

:root {
    --bg-primary: #FFFFFF;
    --bg-secondary: #F5F5F5;
    --bg-tertiary: #EBEBEB;
    --bg-card: #C4C4C4;
    --bg-preset-button: #9A9A9A;
    --bg-start-button: #C8102E;
    --bg-start-button-hover: #A50D26;
    --fg-primary: #3D3D3D;
    --fg-secondary: #7A7A7A;
    --theme-button: #000000;
    --border: #0A0A0A;
    --shadow: 0 4px 12px rgba(0,0,0,0.10);
    --title: BebasNeue, sans-serif;
    --text: DMSans, sans-serif;
    --footer: DMMono, monospace;

    --base-font-size: 16px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 2.5rem;
}

[data-theme="dark"] {
    --bg-primary: #0A0A0A;
    --bg-secondary: #141414;
    --bg-tertiary: #1F1F1F;
    --bg-card: #1F1F1F;
    --bg-preset-button: #1F1F1F;
    --bg-start-button: #C8102E;
    --bg-start-button-hover: #E8132F;
    --fg-primary: #F5F5F5;
    --fg-secondary: #C4C4C4;
    --theme-button: #F5F5F5;
    --border: #2A2A2A;
    --shadow: 0 4px 12px rgba(0,0,0,0.50);
}

[data-theme="dark"] button {
    color: #F5F5F5;
}

[data-theme="dark"] .footer-social a {
    color: #F5F5F5;
}

[data-theme="dark"] .footer-copy {
    color: #F5F5F5;
}

[data-theme="dark"] .footer-brand p {
    color: #F5F5F5;
}

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

html {
    font-size: var(--base-font-size);
}

html, body {
    width: 100%;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* HEADER */

header {
    width: 100%;
    height: auto;
    padding: var(--spacing-sm);
    background-color: var(--bg-tertiary);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

header img {
    height: 2.5rem;
    width: auto;
    margin-right: auto;
}

header svg {
    width: clamp(1.5rem, 5vw, 2.5rem);
    height: clamp(1.5rem, 5vw, 2.5rem);
    fill: var(--theme-button);
    cursor: pointer;
}

#theme-toggle {
    margin-left: auto;
}

#theme-toggle,
#menu-toggle {
    border: none;
    background: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

#theme-toggle:active,
#menu-toggle:active {
    outline: none;
    transform: scale(0.96);
}

.menu-wrapper {
    position: relative;
}

.menu-dropdown {
    position: absolute;
    top: calc(100% + var(--spacing-xs));
    right: 0;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    padding: var(--spacing-xs);
    min-width: 11.25rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;

    opacity: 0;
    visibility: hidden;
    transform: translateY(-0.5rem);
    transition: all ease 0.2s;
    z-index: 100;
}

.menu-dropdown.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.menu-dropdown a {
    display: block;
    padding: var(--spacing-sm);
    border-radius: 0.375rem;
    text-decoration: none;
    color: var(--fg-primary);
    font-family: var(--footer);
    font-size: clamp(0.75rem, 2vw, 1rem);
    width: 100%;
    text-align: center;
    transition: background ease 0.2s;
}

.menu-dropdown a:hover {
    background: var(--bg-tertiary);
}

/* MAIN */

main {
    display: flex;
    flex-direction: column;
    box-sizing: border-box;
    padding: 35px;
    background-color: var(--bg-primary);
    flex: 1;
}

/* CARDS */

.top-grid {
    display: flex;
    flex-direction: row;
    gap: 10px;
    height: auto;
    width: 100%;
}


.card-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(2, 1fr);
    gap: 16px;
    padding: 15px;
    width: 90%;
}

.card-round-time,
.card-prep-time,
.card-rest-time,
.card-total-rounds {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
    transition: all ease 0.2s;
}

.card-round-time:hover,
.card-prep-time:hover,
.card-rest-time:hover,
.card-total-rounds:hover {
    transform: scale(1.01);
    box-shadow: var(--shadow);
}

.card-round-time h1,
.card-prep-time h1,
.card-rest-time h1,
.card-total-rounds h1 {
    font-family: var(--title);
    color: var(--fg-primary);
    font-size: 48px;
    margin-bottom: 12px;
}

.card-round-time time,
.card-prep-time time,
.card-rest-time time,
.card-total-rounds p {
    font-family: var(--text);
    color: var(--fg-primary);
    font-size: 96px;
}

.card-active {
    border: 2px solid #C8102E;
    box-shadow: 0 0 12px rgba(200, 16, 46, 0.4);
}

/* INPUTS */

.bottom-grid {
    display: flex;
    flex-direction: row;
    height: auto;
    width: 100%;
}

.input-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    padding: 35px;
    width: 100%;
    height: auto;
}

.input-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.input-group label {
    font-family: var(--text);
    color: var(--fg-primary);
    font-size: 18px;
}

.input-group input {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-family: var(--text);
    font-size: 18px;
}

.input-group input:focus {
    outline: none;
    border-color: var(--border);
    box-shadow: 0 0 0 2px rgba(0,0,0,0.1);
}

/* PRESETS */

.preset-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    padding: 35px;
    width: 100%;
    height: auto;
}

button {
    padding: 12px 20px;
    background: var(--bg-preset-button);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-family: var(--text);
    font-size: 18px;
    cursor: pointer;
    height: 80px;
    transition: all ease 0.2s;
}

button:hover {
    background: var(--bg-card);
    box-shadow: var(--shadow);
}

button:active {
    transform: scale(0.96);
}

/* ACTION BUTTON */

.button-grid {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    width: 50%;
    height: auto;
    gap: 20px;
}

.action-button {
    padding: 12px 40px;
    background: var(--bg-start-button);
    color: #FFFFFF;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-family: var(--text);
    font-size: 34px;
    cursor: pointer;
    height: 100px;
    width: 500px;
    transition: all ease 0.2s;
}

.action-button:hover {
    background: var(--bg-start-button-hover);
    box-shadow: var(--shadow);
}

.action-button:active {
    transform: scale(0.96);
}

/* FOOTER */

footer {
    width: 100%;
    height: auto;
    padding: 15px;
    background-color: var(--bg-tertiary);
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-family: var(--footer);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.footer-brand img {
    height: 58px;
    width: auto;
    margin-bottom: 4px;
}

.footer-social {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
}

.footer-social a {
    color: black;
    text-decoration: underline;
    font-size: 14px;
}

@media (max-width: 768px) {

    header {
        padding: 8px 12px;
    }

    header img {
        height: 1.8rem;
    }

    main {
        padding: 10px;
        gap: 8px;
    }

    .top-grid {
        flex-direction: column;
        gap: 8px;
    }

    .card-grid {
        width: 100%;
        grid-template-columns: repeat(2, 1fr);
        gap: 6px;
        padding: 0;
    }

    .card-round-time,
    .card-prep-time,
    .card-rest-time,
    .card-total-rounds {
        padding: 10px;
        border-radius: 6px;
    }

    .card-round-time h1,
    .card-prep-time h1,
    .card-rest-time h1,
    .card-total-rounds h1 {
        font-size: 14px;
        margin-bottom: 4px;
        text-align: center;
    }

    .card-round-time time,
    .card-prep-time time,
    .card-rest-time time,
    .card-total-rounds p {
        font-size: 36px;
    }

    .button-grid {
        width: 100%;
        padding: 0;
        gap: 6px;
    }

    .action-button {
        width: 100%;
        height: 52px;
        font-size: 18px;
        padding: 0;
    }

    .bottom-grid {
        flex-direction: column;
        gap: 0;
    }

    .input-grid {
        grid-template-columns: repeat(2, 1fr);
        padding: 8px 0;
        gap: 8px;
    }

    .input-group label {
        font-size: 12px;
        text-align: center;
    }

    .input-group input {
        font-size: 14px;
        padding: 6px;
    }

    .preset-grid {
        grid-template-columns: repeat(3, 1fr);
        padding: 8px 0;
        gap: 6px;
    }

    button {
        height: 48px;
        font-size: 13px;
    }

    footer {
        flex-direction: column;
        gap: 10px;
        text-align: center;
        padding: 14px;
    }

    .footer-brand img {
        height: 32px;
    }

    .footer-brand p {
        font-size: 11px;
    }

    .footer-copy {
        font-size: 11px;
    }

    .footer-social a {
        font-size: 12px;
    }
}