/* --- Fuentes Personalizadas --- */
@font-face {
    font-family: 'AtomicMarker';
    src: url('../fonts/AtomicMarker.woff2') format('woff2'),
        url('../fonts/AtomicMarker.woff') format('woff');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

/* --- Reset Básico y Estilos Globales --- */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    /* Colores y Fuentes */
    --color-background: #1a1a1a;
    --color-surface: #2d2d2d;
    --color-surface-hover: #333333;
    --color-primary-light: #5fb6df;
    --color-primary-dark: #1f8ae2;
    --color-secondary: #98d1ff;
    --color-secondary-dark: #00a7bd;
    --color-text-primary: #e0e0e0;
    --color-text-secondary: #b0b0b0;
    --font-main: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-title: 'AtomicMarker', sans-serif;
    /* Sombras */
    --shadow-card-hover: 0 10px 20px rgba(0, 0, 0, 0.3);
    --shadow-button-hover: 0 6px 12px rgba(0, 0, 0, 0.2);
    --shadow-title: 0 0 10px rgba(79, 195, 247, 0.5);
    /* Bordes */
    --border-radius-main: 10px;
    --border-radius-button: 25px;
}

html {
    scroll-behavior: smooth;
    overflow-y: scroll;
}

body {
    font-family: var(--font-main);
    background-color: var(--color-background);
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* --- Header y Barra Superior --- */
.header {
    background-color: #17191d;
    color: #9ca3af;
    height: 40px;
    padding: 0 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #111;
    font-size: 0.75rem;
    /* text-xs */
    z-index: 20;
    position: relative;
    font-family: 'Inter', sans-serif;
}

.header-left {
    display: flex;
    align-items: center;
}

#welcome-message {
    color: #43b5b1;
}

.logout-button {
    background: none;
    border: none;
    padding: 0;
    color: #9ca3af;
    cursor: pointer;
    font-size: 0.75rem;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'Inter', sans-serif;
}

.logout-button:hover {
    color: #e2e8f0;
}

/* --- Modal de Login --- */
.login-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    background: none;
}

.login-modal::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../img/bglog.webp') no-repeat center center/cover;
    filter: blur(5px);
    opacity: 0.7;
    z-index: -1;
}

.login-modal-content {
    background: linear-gradient(145deg, rgba(80, 92, 100, 0.6), rgba(22, 24, 26, 0.6));
    backdrop-filter: blur(10px);
    border-radius: 30px;
    padding: 2rem;
    width: 100%;
    max-width: 400px;
    box-shadow: var(--shadow-card-hover);
    text-align: center;
    margin-top: -100px;
    border: solid 1px #ffffff79;
}

.login-logo-wrapper {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    max-width: 360px;
    margin: 0 auto 0.1rem auto;
}

.login-logo-wrapper::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    background: url('../img/logocolor.webp') no-repeat center center/contain;
    filter: blur(5px);
    opacity: 0;
    z-index: 0;
    animation: logo-shadow-fade 5.5s ease-in-out infinite alternate;
    pointer-events: none;
}

.login-logo {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 360px;
    height: auto;
    display: block;
}

.login-logo::before {
    display: none !important;
}

@keyframes logo-shadow-fade {
    0% {
        opacity: 0;
    }

    50% {
        opacity: 0.5;
    }

    100% {
        opacity: 0;
    }
}

.login-modal-content h2 {
    font-family: var(--font-title);
    font-size: 2rem;
    color: var(--color-text-primary);
    margin-bottom: 1.5rem;
    text-shadow: var(--shadow-title);
}

.form-group {
    margin-bottom: 1rem;
    text-align: left;
}

.form-group label {
    display: block;
    font-size: 1rem;
    color: var(--color-text-secondary);
    margin-bottom: 0.5rem;
}

.form-group input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--color-text-secondary);
    border-radius: var(--border-radius-main);
    background: var(--color-background);
    color: var(--color-text-primary);
    font-size: 1rem;
}

.form-group input:focus {
    outline: none;
    border-color: var(--color-primary-light);
    box-shadow: 0 0 5px rgba(79, 195, 247, 0.3);
}

#login-button {
    width: 100%;
    padding: 0.75rem;
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary-dark));
    color: white;
    border: none;
    border-radius: var(--border-radius-button);
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.3s ease, box-shadow 0.3s ease;
}

#login-button:hover {
    background: linear-gradient(135deg, var(--color-secondary), var(--color-secondary-dark));
    box-shadow: var(--shadow-button-hover);
}

#login-button:disabled {
    background: linear-gradient(135deg, #555, #666);
    cursor: not-allowed;
}

.login-status {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: #ff5555;
    min-height: 1.2rem;
}

.login-status.success {
    color: #00cc00;
}

/* --- Media Queries --- */
@media (max-width: 768px) {
    .login-modal-content {
        padding: 1.5rem;
        max-width: 90%;
    }
}

@media (max-width: 480px) {
    .login-modal-content {
        padding: 1rem;
        max-width: 95%;
    }

    .login-modal-content h2 {
        font-size: 1.5rem;
    }

    .form-group input {
        padding: 0.5rem;
        font-size: 16px;
    }

    #login-button {
        padding: 0.5rem;
        font-size: 0.9rem;
    }

    .header {
        flex-direction: column;
        align-items: flex-start;
        padding: 0.5rem 0.5rem;
        min-height: 40px;
    }

    .header-content {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        width: 100%;
        margin: 0;
        gap: 0.3rem;
    }

    #welcome-message {
        font-size: 0.8rem;
        margin-bottom: 0;
    }

    .logout-button {
        font-size: 0.8rem;
        padding: 0.3rem 0.7rem;
        margin-top: 0;
    }
}

/* --- Loader centrado --- */
.songs-loader {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 20;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-radius: 18px;
    padding: 48px 60px 40px 60px;
    min-width: 220px;
    min-height: 180px;
    gap: 24px;
    pointer-events: none;
}

.loader-spinner {
    width: 56px;
    height: 56px;
    border: 7px solid #e0e0e0;
    border-top: 7px solid var(--color-primary-dark);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 10px;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

.loader-text {
    color: var(--color-primary-light);
    font-size: 1.0rem;
    font-weight: bold;
    text-align: center;
    letter-spacing: 1px;
    margin-top: 10px;
}

/* --- Scrollbar Personalizado --- */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--color-surface-hover) var(--color-background);
}

::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--color-background);
}

::-webkit-scrollbar-thumb {
    background-color: var(--color-surface-hover);
    border-radius: 10px;
    border: 2px solid var(--color-background);
}

::-webkit-scrollbar-thumb:hover {
    background-color: var(--color-primary-dark);
}