/* =========================================
                  VARIABLES
========================================= */

:root {
    --color-bg: #09090f;
    --color-surface: #12121c;
    --color-surface-light: #1b1b29;
    --color-text: #f7f7fb;
    --color-muted: #9c9caf;

    --color-neon-pink: #ff3cac;
    --color-neon-purple: #784ba0;
    --color-neon-blue: #2b86c5;
    --color-neon-green: #00f5a0;
    --color-neon-yellow: #ffe600;

    --border-color: rgba(255, 255, 255, 0.12);

    --shadow-brutal:
        6px 6px 0 rgba(255, 255, 255, 0.14);

    --shadow-neon:
        0 0 35px rgba(255, 60, 172, 0.2);

    --font-main:
        Inter,
        Arial,
        Helvetica,
        sans-serif;

    --container-width: 1440px;
}


/* =========================================
                    RESET
========================================= */

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

html {
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    overflow-x: hidden;

    background-color: var(--color-bg);
    color: var(--color-text);

    font-family: var(--font-main);
}

body.modal-open {
    overflow: hidden;
}

button,
select {
    font: inherit;
}

button {
    border: 0;
}

button,
select,
.color-bar {
    -webkit-tap-highlight-color: transparent;
}

img {
    display: block;
    max-width: 100%;
}


/* =========================================
              FONDO DECORATIVO
========================================= */

.background-effects {
    position: fixed;
    inset: 0;
    z-index: -1;

    overflow: hidden;

    pointer-events: none;
}

.background-grid {
    position: absolute;
    inset: 0;

    background-image:
        linear-gradient(
            rgba(255, 255, 255, 0.03) 1px,
            transparent 1px
        ),
        linear-gradient(
            90deg,
            rgba(255, 255, 255, 0.03) 1px,
            transparent 1px
        );

    background-size: 42px 42px;

    mask-image:
        linear-gradient(
            to bottom,
            black,
            transparent 85%
        );
}

.background-blob {
    position: absolute;

    width: 520px;
    height: 520px;

    border-radius: 50%;

    filter: blur(110px);

    opacity: 0.22;

    animation: blobFloat 14s ease-in-out infinite;
}

.blob-one {
    top: -180px;
    left: -160px;

    background-color: var(--color-neon-pink);
}

.blob-two {
    right: -180px;
    bottom: -200px;

    background-color: var(--color-neon-blue);

    animation-delay: -7s;
}


/* =========================================
                    HEADER
========================================= */

.app-header {
    width: min(94%, var(--container-width));
    min-height: 82px;
    margin: 20px auto 0;
    padding: 12px 14px 12px 20px;

    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 25px;

    border: 2px solid var(--border-color);
    border-radius: 18px;

    background-color: rgba(9, 9, 15, 0.78);

    backdrop-filter: blur(18px);

    box-shadow:
        0 18px 50px rgba(0, 0, 0, 0.28);
}

.brand {
    display: flex;
    align-items: center;
    gap: 13px;

    color: var(--color-text);
    text-decoration: none;
}

.brand-icon {
    width: 48px;
    height: 48px;

    display: grid;
    place-items: center;

    border: 2px solid var(--color-text);
    border-radius: 12px;

    background:
        linear-gradient(
            135deg,
            var(--color-neon-pink),
            var(--color-neon-blue)
        );

    color: white;

    font-size: 1.25rem;

    box-shadow: var(--shadow-brutal);

    transform: rotate(-4deg);

    transition:
        transform 0.3s ease,
        box-shadow 0.3s ease;
}

.brand:hover .brand-icon {
    transform: rotate(5deg) scale(1.07);

    box-shadow:
        8px 8px 0 rgba(255, 255, 255, 0.19);
}

.brand-text {
    display: flex;
    flex-direction: column;

    line-height: 1;
}

.brand-text strong {
    font-size: 1.18rem;
    letter-spacing: 0.12rem;
}

.brand-text small {
    margin-top: 7px;

    color: var(--color-muted);

    font-size: 0.57rem;
    font-weight: 800;
    letter-spacing: 0.19rem;
}

.header-actions {
    display: flex;
    gap: 10px;
}

.header-button {
    min-height: 46px;
    padding: 0 17px;

    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;

    border: 1px solid var(--border-color);
    border-radius: 12px;

    background-color: var(--color-surface);
    color: var(--color-text);

    font-size: 0.82rem;
    font-weight: 800;

    cursor: pointer;

    transition:
        transform 0.25s ease,
        border-color 0.25s ease,
        background-color 0.25s ease,
        color 0.25s ease;
}

.header-button:hover {
    transform: translateY(-4px);

    border-color: var(--color-neon-pink);

    background-color: var(--color-surface-light);
    color: var(--color-neon-pink);
}

.header-button:active {
    transform: translateY(0) scale(0.96);
}


/* =========================================
                    CONTENIDO
========================================= */

.app-main {
    width: min(94%, var(--container-width));
    margin: 0 auto;
    padding: 72px 0 55px;
}


/* =========================================
                      HERO
========================================= */

.hero-section {
    margin-bottom: 45px;

    display: grid;
    grid-template-columns:
        minmax(0, 1.2fr)
        minmax(340px, 0.8fr);
    align-items: end;
    gap: 50px;
}

.hero-label {
    margin-bottom: 18px;

    color: var(--color-neon-green);

    font-size: 0.75rem;
    font-weight: 900;
    letter-spacing: 0.28rem;
}

.hero-copy h1 {
    max-width: 800px;

    font-size: clamp(3.5rem, 7.5vw, 7rem);
    line-height: 0.9;
    letter-spacing: -0.28rem;
}

.hero-copy h1 span {
    display: block;

    color: transparent;

    background:
        linear-gradient(
            90deg,
            var(--color-neon-pink),
            var(--color-neon-purple),
            var(--color-neon-blue)
        );

    background-clip: text;
    -webkit-background-clip: text;
}

.hero-description {
    max-width: 650px;
    margin-top: 27px;

    color: var(--color-muted);

    font-size: 1.04rem;
    line-height: 1.8;
}

.control-panel {
    padding: 22px;

    border: 2px solid var(--border-color);
    border-radius: 18px;

    background-color: rgba(18, 18, 28, 0.88);

    box-shadow: var(--shadow-brutal);
}

.harmony-control {
    margin-bottom: 14px;
}

.harmony-control label {
    margin-bottom: 10px;

    display: block;

    color: var(--color-muted);

    font-size: 0.72rem;
    font-weight: 900;
    letter-spacing: 0.08rem;
    text-transform: uppercase;
}

.select-wrapper {
    position: relative;
}

.select-wrapper select {
    width: 100%;
    min-height: 51px;
    padding: 0 45px 0 15px;

    appearance: none;

    border: 1px solid var(--border-color);
    border-radius: 11px;
    outline: none;

    background-color: var(--color-bg);
    color: var(--color-text);

    font-weight: 700;

    cursor: pointer;
}

.select-wrapper select:focus {
    border-color: var(--color-neon-blue);
}

.select-wrapper i {
    position: absolute;
    top: 50%;
    right: 16px;

    color: var(--color-neon-blue);

    transform: translateY(-50%);

    pointer-events: none;
}

.generate-button {
    width: 100%;
    min-height: 62px;
    padding: 0 16px;

    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 13px;

    border: 2px solid var(--color-text);
    border-radius: 13px;

    background:
        linear-gradient(
            135deg,
            var(--color-neon-pink),
            var(--color-neon-purple)
        );

    color: white;

    font-weight: 900;

    box-shadow: var(--shadow-brutal);

    cursor: pointer;

    transition:
        transform 0.2s ease,
        box-shadow 0.2s ease,
        filter 0.2s ease;
}

.generate-button:hover {
    transform: translate(-2px, -3px);

    box-shadow:
        9px 9px 0 rgba(255, 255, 255, 0.18);

    filter: brightness(1.08);
}

.generate-button:active {
    transform: translate(4px, 4px);

    box-shadow:
        2px 2px 0 rgba(255, 255, 255, 0.15);
}

.generate-icon {
    font-size: 1.1rem;
}

.generate-button kbd {
    padding: 5px 8px;

    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 6px;

    background-color: rgba(0, 0, 0, 0.26);

    color: white;

    font-size: 0.62rem;
    letter-spacing: 0.08rem;
}


/* =========================================
                  PALETA
========================================= */

.palette-section {
    padding: 12px;

    border: 2px solid var(--border-color);
    border-radius: 22px;

    background-color: rgba(255, 255, 255, 0.03);

    box-shadow:
        0 30px 70px rgba(0, 0, 0, 0.38);
}

.palette-grid {
    min-height: 530px;

    display: grid;
    grid-template-columns:
        repeat(5, minmax(0, 1fr));
    gap: 10px;
}

.color-bar {
    position: relative;

    min-width: 0;
    padding: 18px;

    display: flex;
    flex-direction: column;
    justify-content: space-between;

    overflow: hidden;

    border: 2px solid rgba(255, 255, 255, 0.22);
    border-radius: 15px;

    cursor: pointer;

    transition:
        flex 0.35s ease,
        transform 0.35s ease,
        box-shadow 0.35s ease,
        background-color 0.55s ease;
}

.color-bar::before {
    content: "";

    position: absolute;
    inset: 0;

    background:
        linear-gradient(
            180deg,
            rgba(255, 255, 255, 0.13),
            transparent 28%,
            rgba(0, 0, 0, 0.18)
        );

    pointer-events: none;
}

.color-bar:hover {
    transform: translateY(-7px);

    box-shadow:
        0 28px 45px rgba(0, 0, 0, 0.35);
}

.color-bar.is-changing {
    animation: colorPulse 0.48s ease;
}

.color-bar-top,
.color-bar-content {
    position: relative;
    z-index: 1;
}

.color-bar-top {
    display: flex;
    justify-content: flex-end;
}

.lock-button {
    width: 45px;
    height: 45px;

    display: grid;
    place-items: center;

    border: 2px solid currentColor;
    border-radius: 12px;

    background-color: rgba(0, 0, 0, 0.18);
    color: inherit;

    font-size: 1rem;

    backdrop-filter: blur(9px);

    cursor: pointer;

    transition:
        transform 0.25s ease,
        background-color 0.25s ease,
        box-shadow 0.25s ease;
}

.lock-button:hover {
    transform: rotate(-8deg) scale(1.08);
}

.lock-button.is-locked {
    background-color: currentColor;

    box-shadow:
        4px 4px 0 rgba(0, 0, 0, 0.25);
}

.lock-button.is-locked i {
    color: var(--lock-icon-color);
}

.color-position {
    display: block;
    margin-bottom: 12px;

    font-size: 0.7rem;
    font-weight: 900;
    letter-spacing: 0.12rem;
    text-transform: uppercase;

    opacity: 0.67;
}

.color-hex {
    width: fit-content;

    display: block;

    font-size: clamp(1.5rem, 2.3vw, 2.5rem);
    font-weight: 950;
    letter-spacing: -0.08rem;

    cursor: pointer;

    transition:
        transform 0.2s ease,
        opacity 0.2s ease;
}

.color-hex:hover {
    transform: translateX(5px);

    opacity: 0.72;
}

.color-rgb {
    width: fit-content;
    margin-top: 7px;

    display: block;

    font-size: 0.75rem;
    font-weight: 800;

    opacity: 0.77;

    cursor: pointer;

    transition: opacity 0.2s ease;
}

.color-rgb:hover {
    opacity: 1;
}

.copy-hint {
    margin-top: 18px;

    display: inline-flex;
    align-items: center;
    gap: 7px;

    font-size: 0.68rem;
    font-weight: 800;
    text-transform: uppercase;

    opacity: 0;

    transform: translateY(8px);

    transition:
        opacity 0.25s ease,
        transform 0.25s ease;
}

.color-bar:hover .copy-hint {
    opacity: 0.7;

    transform: translateY(0);
}


/* =========================================
             INFORMACIÓN INFERIOR
========================================= */

.information-panel {
    margin-top: 28px;

    display: grid;
    grid-template-columns:
        repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.info-card {
    padding: 22px;

    display: grid;
    grid-template-columns: 48px 1fr;
    gap: 16px;

    border: 1px solid var(--border-color);
    border-radius: 15px;

    background-color: rgba(18, 18, 28, 0.76);

    transition:
        transform 0.25s ease,
        border-color 0.25s ease;
}

.info-card:hover {
    transform: translateY(-5px);

    border-color: var(--color-neon-purple);
}

.info-card-icon {
    width: 48px;
    height: 48px;

    display: grid;
    place-items: center;

    border-radius: 12px;

    background-color: var(--color-surface-light);
    color: var(--color-neon-green);

    font-size: 1rem;
}

.info-card h2 {
    margin-bottom: 7px;

    font-size: 0.95rem;
}

.info-card p {
    color: var(--color-muted);

    font-size: 0.8rem;
    line-height: 1.6;
}


/* =========================================
                    MODAL
========================================= */

.modal {
    position: fixed;
    inset: 0;
    z-index: 100;

    padding: 20px;

    display: grid;
    place-items: center;

    visibility: hidden;
    opacity: 0;

    transition:
        visibility 0.3s ease,
        opacity 0.3s ease;
}

.modal.is-open {
    visibility: visible;
    opacity: 1;
}

.modal-backdrop {
    position: absolute;
    inset: 0;

    background-color: rgba(0, 0, 0, 0.78);

    backdrop-filter: blur(8px);
}

.modal-dialog {
    position: relative;
    z-index: 1;

    width: min(100%, 680px);
    padding: 30px;

    border: 2px solid var(--color-text);
    border-radius: 18px;

    background-color: var(--color-surface);

    box-shadow:
        10px 10px 0 var(--color-neon-purple);

    transform: translateY(22px) scale(0.96);

    transition: transform 0.3s ease;
}

.modal.is-open .modal-dialog {
    transform: translateY(0) scale(1);
}

.modal-header {
    margin-bottom: 24px;

    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 20px;
}

.modal-label {
    margin-bottom: 8px;

    color: var(--color-neon-green);

    font-size: 0.69rem;
    font-weight: 900;
    letter-spacing: 0.16rem;
}

.modal-header h2 {
    font-size: 2rem;
}

.modal-close {
    width: 42px;
    height: 42px;

    display: grid;
    place-items: center;

    border: 1px solid var(--border-color);
    border-radius: 10px;

    background-color: var(--color-bg);
    color: var(--color-text);

    cursor: pointer;

    transition:
        transform 0.25s ease,
        color 0.25s ease,
        border-color 0.25s ease;
}

.modal-close:hover {
    transform: rotate(8deg);

    border-color: var(--color-neon-pink);
    color: var(--color-neon-pink);
}

.css-preview {
    max-height: 390px;
    padding: 20px;

    overflow: auto;

    border: 1px solid var(--border-color);
    border-radius: 12px;

    background-color: var(--color-bg);
}

.css-preview pre {
    color: var(--color-neon-green);

    font-family:
        "Courier New",
        monospace;

    font-size: 0.88rem;
    line-height: 1.7;
    white-space: pre-wrap;
}

.copy-css-button {
    width: 100%;
    min-height: 52px;
    margin-top: 18px;

    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;

    border: 2px solid var(--color-text);
    border-radius: 12px;

    background-color: var(--color-neon-green);
    color: #05160f;

    font-weight: 900;

    box-shadow:
        5px 5px 0 rgba(255, 255, 255, 0.17);

    cursor: pointer;

    transition:
        transform 0.2s ease,
        box-shadow 0.2s ease;
}

.copy-css-button:hover {
    transform: translate(-2px, -3px);

    box-shadow:
        8px 8px 0 rgba(255, 255, 255, 0.2);
}

.copy-css-button:active {
    transform: translate(3px, 3px);

    box-shadow: none;
}


/* =========================================
                    TOAST
========================================= */

.toast {
    position: fixed;
    right: 24px;
    bottom: 24px;
    z-index: 150;

    max-width: min(390px, calc(100% - 32px));
    padding: 16px 18px;

    display: flex;
    align-items: center;
    gap: 13px;

    border: 2px solid var(--color-text);
    border-radius: 14px;

    background-color: var(--color-surface);
    color: var(--color-text);

    box-shadow:
        7px 7px 0 var(--color-neon-green);

    visibility: hidden;
    opacity: 0;

    transform: translateY(30px) scale(0.95);

    transition:
        visibility 0.3s ease,
        opacity 0.3s ease,
        transform 0.3s ease;
}

.toast.is-visible {
    visibility: visible;
    opacity: 1;

    transform: translateY(0) scale(1);
}

.toast-icon {
    width: 40px;
    height: 40px;

    display: grid;
    place-items: center;

    flex-shrink: 0;

    border-radius: 50%;

    background-color: var(--color-neon-green);
    color: #06140e;
}

.toast strong {
    display: block;

    font-size: 0.9rem;
}

.toast p {
    margin-top: 4px;

    color: var(--color-muted);

    font-size: 0.75rem;
}


/* =========================================
                  ANIMACIONES
========================================= */

@keyframes blobFloat {
    0%,
    100% {
        transform:
            translate3d(0, 0, 0)
            scale(1);
    }

    50% {
        transform:
            translate3d(40px, 25px, 0)
            scale(1.12);
    }
}

@keyframes colorPulse {
    0% {
        transform: scale(1);
    }

    45% {
        transform: scale(0.965);
    }

    100% {
        transform: scale(1);
    }
}


/* =========================================
                  RESPONSIVE
========================================= */

@media (max-width: 1050px) {
    .hero-section {
        grid-template-columns: 1fr;
    }

    .control-panel {
        max-width: 620px;
    }

    .palette-grid {
        min-height: auto;

        grid-template-columns:
            repeat(2, minmax(0, 1fr));
    }

    .color-bar {
        min-height: 300px;
    }

    .color-bar:last-child {
        grid-column: 1 / -1;

        min-height: 220px;
    }
}


@media (max-width: 760px) {
    .app-header {
        width: calc(100% - 20px);
        margin-top: 10px;
        padding: 10px 11px;
    }

    .brand-text {
        display: none;
    }

    .header-button {
        min-width: 44px;
        padding: 0 12px;
    }

    .header-button span {
        display: none;
    }

    .app-main {
        width: calc(100% - 20px);
        padding-top: 52px;
    }

    .hero-copy h1 {
        font-size: clamp(3.4rem, 18vw, 5.2rem);
        letter-spacing: -0.18rem;
    }

    .palette-section {
        padding: 8px;
    }

    .palette-grid {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .color-bar,
    .color-bar:last-child {
        min-height: 210px;

        grid-column: auto;
    }

    .color-bar {
        flex-direction: row;
        align-items: flex-end;
    }

    .color-bar-top {
        position: absolute;
        top: 16px;
        right: 16px;
    }

    .copy-hint {
        display: none;
    }

    .information-panel {
        grid-template-columns: 1fr;
    }

    .modal-dialog {
        padding: 22px;
    }

    .toast {
        right: 16px;
        bottom: 16px;
        left: 16px;
    }
}


@media (max-width: 470px) {
    .hero-copy h1 {
        font-size: 3.15rem;
        letter-spacing: -0.13rem;
    }

    .hero-description {
        font-size: 0.94rem;
    }

    .control-panel {
        padding: 16px;
    }

    .generate-button {
        grid-template-columns: auto 1fr;
    }

    .generate-button kbd {
        display: none;
    }

    .color-hex {
        font-size: 1.9rem;
    }
}

/* =========================================
                    FOOTER
========================================= */

.app-footer {
    width: min(94%, var(--container-width));
    margin: 20px auto 28px;

    border: 2px solid var(--border-color);
    border-radius: 18px;

    background-color: rgba(18, 18, 28, 0.78);

    backdrop-filter: blur(18px);

    box-shadow:
        0 20px 55px rgba(0, 0, 0, 0.25);
}

.footer-content {
    padding: 24px;

    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 14px;
}

.footer-logo {
    width: 46px;
    height: 46px;

    display: grid;
    place-items: center;

    flex-shrink: 0;

    border: 2px solid var(--color-text);
    border-radius: 12px;

    background:
        linear-gradient(
            135deg,
            var(--color-neon-pink),
            var(--color-neon-blue)
        );

    color: white;

    box-shadow:
        4px 4px 0 rgba(255, 255, 255, 0.13);
}

.footer-brand strong {
    display: block;

    font-size: 0.95rem;
    letter-spacing: 0.04rem;
}

.footer-brand p {
    margin-top: 5px;

    color: var(--color-muted);

    font-size: 0.78rem;
}

.footer-links {
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-links a,
.footer-links button {
    min-height: 42px;
    padding: 0 15px;

    display: inline-flex;
    align-items: center;
    justify-content: center;

    border: 1px solid var(--border-color);
    border-radius: 10px;

    background-color: var(--color-surface);
    color: var(--color-text);

    font-size: 0.75rem;
    font-weight: 800;
    text-decoration: none;

    cursor: pointer;

    transition:
        transform 0.25s ease,
        color 0.25s ease,
        border-color 0.25s ease;
}

.footer-links a:hover,
.footer-links button:hover {
    transform: translateY(-3px);

    border-color: var(--color-neon-green);
    color: var(--color-neon-green);
}

.footer-bottom {
    padding: 16px 24px;

    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;

    border-top: 1px solid var(--border-color);
}

.footer-bottom p {
    color: var(--color-muted);

    font-size: 0.72rem;
}

.watermark {
    color: rgba(255, 255, 255, 0.42);

    font-size: 0.68rem;
    text-decoration: none;

    transition:
        color 0.25s ease,
        transform 0.25s ease;
}

.watermark strong {
    color: rgba(255, 255, 255, 0.65);
}

.watermark:hover {
    color: var(--color-neon-pink);

    transform: translateY(-2px);
}

.watermark:hover strong {
    color: var(--color-neon-pink);
}