/* Importar variáveis */
@import url('variables.css');

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    padding: var(--container-padding);
    transition: background-color 0.3s ease, color 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* =========================================== */
/* CONTAINER PRINCIPAL - RESPONSIVO            */
/* =========================================== */
.container {
    background: var(--bg-secondary);
    border-radius: 20px;
    padding: var(--gap-lg);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    width: 100%;
    max-width: min(95%, 800px); /* Adaptável e máximo 800px */
    text-align: center;
    border: 1px solid var(--bg-tertiary);
    margin: 1rem auto; /* Espaçamento responsivo */
}

/* =========================================== */
/* TÍTULO - RESPONSIVO                         */
/* =========================================== */
.title {
    color: var(--text-primary);
    margin-bottom: var(--gap-lg);
    font-size: clamp(1.5rem, 5vw, 2.5rem); /* Responsivo com clamp */
    font-weight: 600;
    text-align: center;
    line-height: 1.2;
}

/* =========================================== */
/* CARD PRINCIPAL - RESPONSIVO                 */
/* =========================================== */
.card {
    background: var(--bg-primary);
    border-radius: 15px;
    padding: clamp(1rem, 3vw, 2rem); /* Padding responsivo */
    margin-bottom: var(--gap-md);
    border: 1px solid var(--bg-tertiary);
}

/* =========================================== */
/* GRUPOS DE ENTRADA - RESPONSIVOS             */
/* =========================================== */
.input-group {
    margin: clamp(1rem, 2.5vw, 1.5rem) 0; /* Margem responsiva */
    text-align: left;
}

.input-label {
    display: block;
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: clamp(0.9rem, 2.5vw, 1rem); /* Fonte responsiva */
}

.value-display {
    color: var(--component-primary);
    font-weight: bold;
    font-size: clamp(0.95rem, 2.5vw, 1.05rem);
}

/* =========================================== */
/* SLIDERS - RESPONSIVOS                       */
/* =========================================== */
.slider {
    width: 100%;
    height: clamp(10px, 2vw, 12px); /* Altura responsiva */
    -webkit-appearance: none;
    background: linear-gradient(90deg, var(--component-primary), var(--component-tertiary));
    border-radius: 8px;
    outline: none;
    border: 1px solid var(--component-secondary);
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: clamp(20px, 4vw, 25px); /* Tamanho responsivo */
    height: clamp(20px, 4vw, 25px);
    background: var(--component-contrast);
    border-radius: 50%;
    border: 3px solid var(--component-primary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.slider::-webkit-slider-thumb:hover {
    transform: scale(1.1);
    background: var(--component-secondary);
}

/* =========================================== */
/* GRUPO DE BOTÕES - SUPER RESPONSIVO          */
/* =========================================== */
.button-group.flex-row {
    display: flex;
    flex-wrap: wrap;
    gap: clamp(0.5rem, 1.5vw, 1rem); /* Gap responsivo */
    justify-content: center;
    margin: clamp(1rem, 2.5vw, 1.5rem) 0;
}

/* =========================================== */
/* BOTÕES - RESPONSIVOS                        */
/* =========================================== */
.btn {
    padding: clamp(0.6rem, 2vw, 0.75rem) clamp(1rem, 3vw, 1.5rem);
    border: none;
    border-radius: 8px;
    font-size: clamp(0.85rem, 2.5vw, 1rem);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: max-content; /* Evita quebra de texto */
    flex: 1 1 auto; /* Cresce e encolhe conforme espaço */
    max-width: 100%;
}

/* Estilos específicos dos botões */
.btn-primary {
    background: var(--component-primary);
    color: var(--text-contrast);
}

.btn-primary:hover {
    background: var(--component-secondary);
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--component-secondary);
    color: var(--text-contrast);
}

.btn-secondary:hover {
    background: var(--component-tertiary);
    transform: translateY(-2px);
}

.btn-accent {
    background: var(--component-contrast);
    color: var(--text-contrast);
}

.btn-accent:hover {
    background: var(--component-primary);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--component-primary);
    color: var(--component-primary);
}

.btn-outline:hover {
    background: var(--component-primary);
    color: var(--text-contrast);
    transform: translateY(-2px);
}

/* =========================================== */
/* VISUALIZADOR - RESPONSIVO                   */
/* =========================================== */
.visualizer-container {
    margin: clamp(1rem, 2.5vw, 1.5rem) 0;
    background: var(--bg-tertiary);
    border-radius: 10px;
    padding: clamp(0.5rem, 1.5vw, 0.75rem);
    border: 1px solid var(--bg-tertiary);
}

.visualizer-canvas {
    width: 100%;
    height: clamp(80px, 15vw, 120px); /* Altura responsiva */
    display: block;
    border-radius: 5px;
    background: var(--bg-contrast);
}

/* =========================================== */
/* SEÇÃO DE PREDEFINIÇÕES - RESPONSIVA         */
/* =========================================== */
.presets-section {
    margin-top: clamp(1rem, 2.5vw, 1.5rem);
    padding-top: clamp(0.75rem, 2vw, 1rem);
    border-top: 2px solid var(--bg-tertiary);
}

.subtitle {
    color: var(--text-secondary);
    margin-bottom: clamp(0.5rem, 1.5vw, 1rem);
    font-size: clamp(1rem, 3vw, 1.2rem);
    text-align: center;
    line-height: 1.3;
}

.preset-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: clamp(0.5rem, 1.5vw, 0.75rem);
    justify-content: center;
    margin-top: clamp(0.5rem, 1.5vw, 0.75rem);
}

.preset-btn {
    padding: clamp(0.5rem, 2vw, 0.75rem) clamp(1rem, 3vw, 1.5rem);
    background: var(--bg-tertiary);
    border: 2px solid var(--component-secondary);
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
    color: var(--text-primary);
    font-size: clamp(0.85rem, 2.5vw, 1rem);
    flex: 1 1 auto;
    min-width: max-content;
    text-align: center;
}

.preset-btn:hover {
    background: var(--component-primary);
    color: var(--text-contrast);
    border-color: var(--component-primary);
    transform: translateY(-2px);
}

/* =========================================== */
/* INFO TEXT - RESPONSIVO                      */
/* =========================================== */
.info-text {
    margin-top: clamp(0.75rem, 2vw, 1rem);
    color: var(--text-tertiary);
    font-size: clamp(0.8rem, 2vw, 0.9rem);
    font-style: italic;
    text-align: center;
    line-height: 1.4;
}

/* =========================================== */
/* SEÇÃO DESCRITIVA COLAPSÁVEL - RESPONSIVA    */
/* =========================================== */
#descricao {
    width: 100%;
    max-width: min(95%, 800px);
    margin-top: clamp(1.5rem, 4vw, 3rem);
    background: var(--bg-secondary);
    border-radius: 15px;
    overflow: hidden;
    border: 1px solid var(--bg-tertiary);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

/* Cabeçalho da descrição */
#descricao > header {
    padding: clamp(1rem, 3vw, 1.5rem) clamp(1.5rem, 4vw, 2rem);
    background: var(--component-primary);
    color: var(--text-contrast);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.3s ease;
    position: relative;
}

#descricao > header:hover {
    background: var(--component-secondary);
}

#descricao > header h1 {
    margin: 0;
    font-size: clamp(1.2rem, 3.5vw, 1.5rem);
    color: var(--text-contrast);
    line-height: 1.3;
}

#descricao > header .subtitle {
    margin: 0.5rem 0 0 0;
    color: rgba(255, 255, 255, 0.8);
    font-size: clamp(0.85rem, 2.5vw, 1rem);
}

/* Ícone de seta */
#descricao > header::after {
    content: "▼";
    font-size: clamp(1rem, 2.5vw, 1.2rem);
    transition: transform 0.3s ease;
    opacity: 0.8;
    flex-shrink: 0;
    margin-left: 1rem;
}

#descricao.collapsed > header::after {
    transform: rotate(-90deg);
}

/* Conteúdo da descrição */
#descricao > article {
    padding: clamp(1rem, 3vw, 2rem);
    max-height: 2000px;
    overflow: hidden;
    transition: max-height 0.5s ease, padding 0.3s ease;
    background: var(--bg-primary);
    line-height: 1.6;
}

#descricao.collapsed > article {
    max-height: 0;
    padding: 0 clamp(1.5rem, 4vw, 2rem);
}

/* Estilos do conteúdo do artigo */
#descricao article p {
    line-height: 1.6;
    margin-bottom: clamp(1rem, 2.5vw, 1.5rem);
    color: var(--text-primary);
    font-size: clamp(0.9rem, 2.5vw, 1rem);
}

#descricao article h2 {
    color: var(--component-primary);
    margin: clamp(1.5rem, 3vw, 2rem) 0 1rem 0;
    font-size: clamp(1.1rem, 3vw, 1.5rem);
    line-height: 1.3;
}

#descricao article h3 {
    color: var(--text-secondary);
    margin: clamp(1rem, 2.5vw, 1.5rem) 0 1rem 0;
    font-size: clamp(1rem, 2.8vw, 1.2rem);
    line-height: 1.3;
}

#descricao .pomodoro-cycle {
    background: var(--bg-secondary);
    border-left: 4px solid var(--component-primary);
    padding: clamp(1rem, 2.5vw, 1.5rem);
    margin: clamp(1rem, 2.5vw, 1.5rem) 0;
    border-radius: 0 8px 8px 0;
}

#descricao .pomodoro-cycle ul {
    padding-left: clamp(1rem, 2.5vw, 1.5rem);
    margin: 1rem 0;
}

#descricao .pomodoro-cycle li {
    margin-bottom: 0.75rem;
    line-height: 1.5;
    color: var(--text-secondary);
    font-size: clamp(0.9rem, 2.5vw, 1rem);
}

#descricao .highlight {
    background: var(--component-contrast);
    color: var(--text-contrast);
    padding: clamp(1rem, 2.5vw, 1.5rem);
    border-radius: 8px;
    margin: clamp(1rem, 2.5vw, 1.5rem) 0;
    font-weight: 500;
}

#descricao .highlight p {
    margin: 0;
    color: var(--text-contrast);
    font-size: clamp(0.95rem, 2.5vw, 1.05rem);
}

#descricao ul {
    padding-left: clamp(1rem, 2.5vw, 1.5rem);
    margin: 1rem 0;
}

#descricao li {
    margin-bottom: 0.75rem;
    line-height: 1.5;
    color: var(--text-secondary);
    font-size: clamp(0.9rem, 2.5vw, 1rem);
}

#descricao .professionals-list {
    display: flex;
    flex-wrap: wrap;
    gap: clamp(0.5rem, 1.5vw, 0.75rem);
    margin: clamp(1rem, 2.5vw, 1.5rem) 0;
}

#descricao .profession-tag {
    background: var(--component-secondary);
    color: var(--text-contrast);
    padding: clamp(0.4rem, 1.5vw, 0.5rem) clamp(0.75rem, 2vw, 1rem);
    border-radius: 20px;
    font-size: clamp(0.8rem, 2vw, 0.9rem);
    font-weight: 500;
    line-height: 1.3;
}

/* Footer da descrição */
#descricao > footer {
    padding: clamp(1rem, 2.5vw, 1.5rem);
    background: var(--bg-tertiary);
    color: var(--text-tertiary);
    text-align: center;
    font-size: clamp(0.8rem, 2vw, 0.9rem);
    border-top: 1px solid var(--bg-tertiary);
    line-height: 1.4;
}

/* =========================================== */
/* MEDIA QUERIES ESPECÍFICAS                   */
/* =========================================== */

/* Telas MUITO pequenas (até 320px) - Smartphones muito pequenos */
@media (max-width: 320px) {
    body {
        padding: 0.5rem;
    }
    
    .container {
        padding: 0.75rem;
        border-radius: 15px;
    }
    
    .card {
        padding: 0.75rem;
        border-radius: 12px;
    }
    
    .btn {
        padding: 0.5rem 0.75rem;
        font-size: 0.8rem;
        border-radius: 6px;
    }
    
    .preset-btn {
        padding: 0.4rem 0.75rem;
        font-size: 0.8rem;
        border-radius: 20px;
    }
    
    .button-group.flex-row {
        gap: 0.4rem;
    }
    
    #descricao > header {
        padding: 0.75rem 1rem;
        flex-direction: column;
        align-items: flex-start;
    }
    
    #descricao > header::after {
        position: absolute;
        right: 1rem;
        top: 50%;
        transform: translateY(-50%);
    }
    
    #descricao > header h1 {
        font-size: 1.1rem;
    }
    
    #descricao > header .subtitle {
        font-size: 0.8rem;
    }
}

/* Telas PEQUENAS (321px a 480px) - Smartphones */
@media (min-width: 321px) and (max-width: 480px) {
    body {
        padding: 0.75rem;
    }
    
    .container {
        padding: 1rem;
        border-radius: 18px;
    }
    
    .card {
        padding: 1rem;
        border-radius: 14px;
    }
    
    .button-group.flex-row {
        gap: 0.5rem;
    }
    
    .btn {
        flex: 0 1 calc(50% - 0.5rem); /* 2 botões por linha */
        min-width: 0;
    }
    
    .preset-btn {
        flex: 0 1 100%; /* 1 botão por linha */
    }
    
    .preset-buttons {
        flex-direction: column;
        align-items: stretch;
    }
    
    #descricao > header {
        flex-wrap: wrap;
    }
    
    #descricao > header h1 {
        flex: 1 1 100%;
    }
    
    #descricao > header .subtitle {
        flex: 1 1 100%;
    }
}

/* Telas MÉDIAS-PEQUENAS (481px a 768px) - Tablets pequenos/Phablets */
@media (min-width: 481px) and (max-width: 768px) {
    .container {
        padding: 1.25rem;
    }
    
    .card {
        padding: 1.25rem;
    }
    
    .button-group.flex-row {
        gap: 0.75rem;
    }
    
    .btn {
        flex: 0 1 calc(50% - 0.75rem); /* 2 botões por linha */
    }
    
    .btn:nth-child(5) { /* Reset button ocupa linha inteira */
        flex: 1 1 100%;
    }
    
    #descricao > header {
        flex-direction: row;
        align-items: center;
    }
}

/* Telas MÉDIAS (769px a 1024px) - Tablets/Laptops */
@media (min-width: 769px) and (max-width: 1024px) {
    .container {
        padding: 1.5rem;
    }
    
    .button-group.flex-row {
        gap: 1rem;
    }
    
    .btn {
        flex: 0 1 calc(33.333% - 1rem); /* 3 botões por linha */
    }
    
    .btn:nth-child(4),
    .btn:nth-child(5) { /* Últimos 2 botões em linha própria */
        flex: 0 1 calc(50% - 1rem);
    }
}

/* Telas GRANDES (1025px+) - Desktops */
@media (min-width: 1025px) {
    .button-group.flex-row {
        gap: 1rem;
    }
    
    .btn {
        flex: 0 1 auto; /* Tamanho automático */
    }
}

/* =========================================== */
/* AJUSTES PARA ORIENTAÇÃO LANDSCAPE           */
/* =========================================== */
@media (max-height: 600px) and (orientation: landscape) {
    .container {
        margin: 0.5rem auto;
        max-width: 95%;
    }
    
    .card {
        padding: 0.75rem;
    }
    
    .visualizer-canvas {
        height: 60px; /* Menor altura em landscape */
    }
    
    #descricao {
        margin-top: 1rem;
    }
}

/* =========================================== */
/* MELHORIAS DE ACESSIBILIDADE                 */
/* =========================================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Suporte a dark mode do sistema */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme]) {
        background-color: var(--bg-primary);
        color: var(--text-primary);
    }
}

/* Impressão */
@media print {
    .btn,
    .preset-btn,
    .slider,
    .visualizer-container,
    #descricao > header {
        display: none !important;
    }
    
    .container {
        box-shadow: none;
        border: 1px solid #ccc;
    }
}