/* =================================================================
   Apple-Inspired Premium Aesthetic for ShapeShift
   Version: 5.2 - Mobile Workout View Overhaul
   ================================================================= */

/* 1. FONT IMPORTS & ROOT VARIABLES
   -----------------------------------------------------------------
   - Fontes: Inter para UI, Oswald para destaques.
   - Paleta de cores expandida com gradientes e cores de estado.
   - Métricas de UI refinadas para um espaçamento consistente.
   - Efeitos avançados como brilhos, gradientes e sombras complexas.
*/
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Oswald:wght@700&display=swap');

:root {
    /* Primary Color Palette */
    --bg-color: #000000;
    --surface-color: #1a1a1c; /* Ligeiramente mais claro que o preto para profundidade */
    --surface-gradient: linear-gradient(145deg, #1c1c1e, #111112);
    --border-color: rgba(255, 255, 255, 0.1);
    --border-color-hover: rgba(255, 255, 255, 0.25);

    /* Accent Palette */
    --primary-accent: #FBBF24;
    --primary-accent-hover: #FFD60A;
    --primary-accent-gradient: linear-gradient(45deg, #FBBF24, #FFD60A);

    /* Typography Palette */
    --text-primary: #f5f5f7;
    --text-secondary: #86868b;
    --text-tertiary: #636366;
    --text-on-accent: #000000;

    /* System & State Colors */
    --success-color: #30d158;
    --error-color: #ff453a;
    --delete-color: #ff453a;
    --delete-color-hover: #ff6b61;
    --disabled-bg-color: #2c2c2e;
    --disabled-text-color: var(--text-tertiary);

    /* UI Metrics */
    --border-radius-large: 28px;
    --border-radius-medium: 14px;
    --border-radius-small: 10px;
    --transition-speed-fast: 0.25s;
    --transition-speed-normal: 0.4s;
    --transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    --global-padding: 4rem;

    /* Advanced Effects */
    --glow-shadow: 0 0 20px rgba(251, 191, 36, 0.08);
    --glow-shadow-hover: 0 0 40px rgba(251, 191, 36, 0.15);
    --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    --button-shadow: 0 4px 6px rgba(0, 0, 0, 0.1), 0 1px 3px rgba(0, 0, 0, 0.08);
    --button-shadow-hover: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.08);
}

/* 2. GLOBAL & BODY STYLES
   -----------------------------------------------------------------
   - Suavização de fontes para renderização nítida.
   - Animação de entrada suave para a página.
   - Estilos de scrollbar personalizados.
*/
*, *::before, *::after { box-sizing: border-box; }
html {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    margin: 0;
    padding-top: 10rem;
    opacity: 0;
    animation: fadeInAnimation 1s ease forwards;
}

body.body-index {
    padding-top: 12rem;
}

body.body-planos {
    padding-top: 12rem;
}


@keyframes fadeInAnimation {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Custom Scrollbar */
body::-webkit-scrollbar { width: 10px; }
body::-webkit-scrollbar-track { background: var(--bg-color); }
body::-webkit-scrollbar-thumb {
    background-color: var(--surface-color);
    border-radius: 10px;
    border: 2px solid var(--bg-color);
}
body::-webkit-scrollbar-thumb:hover { background-color: var(--text-tertiary); }

/* 3. MAIN LAYOUT & CONTAINERS
   -----------------------------------------------------------------
   - Container principal com gradiente subtil e borda com brilho.
*/
main {
    background: var(--surface-gradient);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-large);
    padding: 3rem 4rem;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto 4rem;
    box-shadow: var(--card-shadow), var(--glow-shadow);
    transition: all var(--transition-speed-normal) var(--transition-timing-function);
    position: relative;
    overflow: hidden;
}
main:hover {
    box-shadow: var(--card-shadow), var(--glow-shadow-hover);
    transform: translateY(-4px) scale(1.01);
    border-color: var(--border-color-hover);
}

header {
    text-align: center;
    margin-bottom: 4rem;
    padding-top: 0;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
    position: relative;
}

header::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 1px;
    background: var(--primary-accent-gradient);
    transition: width var(--transition-speed-normal) var(--transition-timing-function);
}
main:hover header::after {
    width: 20%;
}

/* 4. TYPOGRAPHY */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    font-weight: 700;
    margin: 0 0 1rem 0;
    letter-spacing: -0.025em;
    text-wrap: balance;
}
header h1 {
    font-size: 7rem;
    font-weight: 800;
    line-height: 1.05;
    margin-bottom: 1rem;
}
h1 .text-amber-400 {
    background: var(--primary-accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
header p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 650px;
    margin: 0.5rem auto 0;
    line-height: 1.6;
}
a {
    color: var(--primary-accent);
    text-decoration: none;
    transition: color var(--transition-speed-fast) ease-in-out;
}
a:hover { color: var(--primary-accent-hover); }

/* 5. FORMS & INPUTS */
.form-label {
    display: block;
    margin-bottom: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--transition-speed-fast) ease;
    cursor: text;
}
.form-group:focus-within .form-label { color: var(--primary-accent); }
.form-input, .form-select {
    width: 100%;
    background-color: #0d0d0f;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: var(--border-radius-medium);
    padding: 1.1rem 1.25rem;
    font-size: 1rem;
    transition: all var(--transition-speed-normal) ease;
    box-shadow: inset 0 1px 2px rgba(0,0,0,0.5);
}
.form-input::placeholder { color: var(--text-tertiary); }
.form-input:hover, .form-select:hover {
    border-color: var(--border-color-hover);
    background-color: #111;
}
.form-input:focus, .form-select:focus {
    outline: none;
    border-color: var(--primary-accent);
    box-shadow: 0 0 0 3px rgba(251, 191, 36, 0.3), inset 0 1px 2px rgba(0,0,0,0.5);
    background-color: #111;
}
.form-select {
    -webkit-appearance: none; -moz-appearance: none; appearance: none;
    padding-right: 3rem;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%238e8e93' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 1rem center;
    background-repeat: no-repeat;
    background-size: 1.25em;
    cursor: pointer;
}
input[type="number"] { -moz-appearance: textfield; appearance: none; }
input[type="number"]::-webkit-inner-spin-button, input[type="number"]::-webkit-outer-spin-button { -webkit-appearance: none; margin: 0; }

.form-grid { display: grid; gap: 2rem; margin-bottom: 2rem; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
@media (min-width: 1200px) { .form-grid { grid-template-columns: repeat(4, 1fr); } }
textarea.form-input { min-height: 150px; resize: vertical; line-height: 1.7; }

/* 6. BUTTONS */
.generate-button, #save-routine-btn, #finish-workout-btn, .login-button, .delete-button {
    display: inline-block;
    background: var(--primary-accent-gradient);
    color: var(--text-on-accent);
    font-weight: 600;
    font-size: 1rem;
    padding: 1.1rem 2.2rem;
    border-radius: var(--border-radius-medium);
    border: none;
    cursor: pointer;
    text-align: center;
    transition: all var(--transition-speed-normal) var(--transition-timing-function);
    box-shadow: var(--button-shadow);
    transform: perspective(1px) translateZ(0);
}
.generate-button:hover, #save-routine-btn:hover, #finish-workout-btn:hover, .login-button:hover, .delete-button:hover {
    transform: translateY(-4px);
    box-shadow: var(--button-shadow-hover);
}
.generate-button:active, #save-routine-btn:active, #finish-workout-btn:active, .login-button:active, .delete-button:active {
    transform: translateY(-1px);
    box-shadow: var(--button-shadow);
}
.delete-button { background: var(--delete-color); color: var(--text-primary); }
.delete-button:hover { background: var(--delete-color-hover); }

.finish-workout-button:disabled {
    background: var(--primary-accent);
    color: rgba(0, 0, 0, 0.5);
    opacity: 0.5;
    cursor: not-allowed;
    box-shadow: none;
    transform: none;
}
.delete-button:disabled {
    background: var(--disabled-bg-color);
    cursor: not-allowed;
    color: var(--disabled-text-color);
    box-shadow: none;
    transform: none;
}
.form-button-container { text-align: center; margin-top: 3rem; }

/* 7. NAVIGATION & LOGO */
#main-navigation-container {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    padding: 1.5rem 4rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 10;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
}

#header-logo h1 {
    font-size: 1.75rem;
    font-weight: 800;
    line-height: 1;
    margin: 0;
    letter-spacing: -0.05em;
    transition: transform 0.3s ease;
}
#header-logo:hover h1 {
    transform: scale(1.05);
}

nav {
    display: flex;
    gap: 2rem;
}
nav a {
    color: var(--text-secondary); font-weight: 500; padding-bottom: 0.5rem;
    border-bottom: 2px solid transparent; position: relative;
    transition: all var(--transition-speed-fast) ease;
}
nav a::after {
    content: ''; position: absolute; bottom: -2px; left: 0;
    width: 0; height: 2px; background: var(--primary-accent-gradient);
    transition: width var(--transition-speed-normal) var(--transition-timing-function);
}
nav a:hover { color: var(--text-primary); }
nav a:hover::after { width: 100%; }
nav a.text-amber-400 { color: var(--primary-accent); }
nav a.text-amber-400::after { width: 100%; }

.nav-right-items {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}
#streak-counter-nav {
    display: flex; align-items: center; gap: 0.5rem; font-weight: 600;
    background-color: rgba(255,255,255,0.05); padding: 0.5rem 1rem;
    border-radius: var(--border-radius-medium); border: 1px solid var(--border-color);
}
#logout-btn {
    background: none; border: none; color: var(--text-secondary); cursor: pointer;
    padding: 0.5rem; transition: all var(--transition-speed-fast) ease;
    border-radius: 50%;
}
#logout-btn:hover { color: var(--text-primary); background-color: rgba(255,255,255,0.1); }

/* 8. WORKOUT & ROUTINE SPECIFIC STYLES */
#empty-state { text-align: center; padding: 5rem 0; }
#empty-state p { font-size: 1.25rem; color: var(--text-secondary); line-height: 1.7; }
#routine-content { display: flex; flex-direction: column; gap: 2.5rem; margin-top: 2rem; }
.workout-day {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-large);
    padding: 2.5rem;
    transition: all var(--transition-speed-normal) var(--transition-timing-function);
    display: flex;
    flex-direction: column;
    align-items: center;
}
.workout-day:hover {
    border-color: var(--border-color-hover);
    transform: scale(1.02);
    box-shadow: var(--card-shadow);
}
.workout-day h3 {
    width: 100%;
    text-align: center;
    margin-top: 0; color: var(--primary-accent); font-size: 1.75rem;
    margin-bottom: 1rem; border-bottom: 1px solid var(--border-color); padding-bottom: 1rem;
}
.workout-day > .generate-button {
    margin-top: 1rem;
    margin-bottom: 2rem;
}
.exercise-list-static {
    list-style: none; padding: 0; margin: 0;
    display: flex; flex-direction: column; gap: 0.5rem;
    width: 100%;
    text-align: center;
}
.exercise-list-static li {
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: 1.1rem;
    padding: 0.5rem;
    line-height: 1.6;
    text-transform: none;
    letter-spacing: normal;
}

/* 9. CHECKBOX STYLES */
.exercise-checkbox {
    -webkit-appearance: none; appearance: none; background-color: transparent; margin: 0;
    font: inherit; color: var(--border-color); width: 1.75em; height: 1.75em;
    border: 2px solid var(--border-color); border-radius: 6px;
    transform: translateY(-0.075em); display: grid; place-content: center;
    cursor: pointer; transition: all var(--transition-speed-fast) ease;
}
.exercise-checkbox::before {
    content: ""; width: 0.85em; height: 0.85em; transform: scale(0);
    transition: 120ms transform ease-in-out; box-shadow: inset 1em 1em var(--primary-accent);
    transform-origin: bottom left; clip-path: polygon(14% 44%, 0 65%, 50% 100%, 100% 16%, 80% 0%, 43% 62%);
}
.exercise-checkbox:checked { border-color: var(--primary-accent); background-color: var(--primary-accent); }
.exercise-checkbox:checked::before { transform: scale(1); box-shadow: inset 1em 1em white; }

/* 10. UTILITY CLASSES */
.hidden {
    display: none !important;
}

/* 11. RESPONSIVE ADJUSTMENTS */
@media (max-width: 1024px) {
    #main-navigation-container {
        padding: 1.5rem 2rem;
    }
}

@media (max-width: 780px) {
    body {
        padding-top: 6rem;
    }
    body.body-index, body.body-planos {
        padding-top: 8rem;
    }
    main {
        padding: 1.5rem;
        margin: 2rem auto 2rem;
    }
    header h1 { font-size: 3.5rem !important; }
    header { 
        margin-bottom: 2rem; 
        padding-top: 0; 
    }
    #main-navigation-container {
        padding: 1rem 1.5rem;
        justify-content: space-between;
    }
    
    nav {
        display: none;
    }
    #header-logo, .nav-right-items {
        display: flex;
    }
    #logout-btn {
        display: none;
    }
}

/* =================================================================
   12. ESTILOS DO TREINO INTERATIVO (MOBILE-FIRST)
   ================================================================= */
.workout-day--active {
    border-color: var(--primary-accent);
    box-shadow: var(--glow-shadow-hover);
    transform: scale(1.02);
}
.workout-day--active h3 {
    color: var(--primary-accent-hover);
}
.interactive-exercise-list {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0;
    width: 100%;
    max-width: 700px;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.interactive-exercise-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    background-color: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-medium);
    padding: 0.75rem 1rem;
    transition: all var(--transition-speed-fast) ease;
}
.interactive-exercise-item:hover {
    border-color: var(--border-color-hover);
    background-color: rgba(0, 0, 0, 0.3);
}

/* CORREÇÃO: Container para o texto do exercício */
.exercise-info {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
    overflow: hidden;
}

.exercise-label {
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    line-height: 1.3;
}

/* CORREÇÃO: Estilo para os detalhes (séries/reps) */
.exercise-details {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 400;
}

.exercise-checkbox:checked + .exercise-info .exercise-label {
    text-decoration: line-through;
    color: var(--text-secondary);
}

.exercise-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* CORREÇÃO: Novo estilo para o botão de descanso (ícone) */
.rest-button {
    background: none;
    border: 1px solid transparent;
    color: var(--text-secondary);
    padding: 0.5rem;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-speed-fast) ease;
}
.rest-button:hover {
    border-color: var(--primary-accent-hover);
    color: var(--primary-accent-hover);
    background-color: rgba(251, 191, 36, 0.1);
}

.exercise-info-link {
    color: var(--text-tertiary);
    transition: color var(--transition-speed-fast) ease;
    padding: 0.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.exercise-info-link:hover {
    color: var(--primary-accent-hover);
}
.finish-workout-button {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

/* =================================================================
   13. ESTILOS DO MODAL DO CRONÓMETRO (CORRIGIDO)
   ================================================================= */
#timer-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 999;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(20px);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeInAnimation 0.5s var(--transition-timing-function);
}
.timer-modal-content {
    background: var(--surface-gradient);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-large);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
    padding: 2.5rem;
    width: 100%;
    max-width: 420px;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    transform: scale(0.95);
    animation: modalPopIn 0.5s var(--transition-timing-function) forwards;
}
@keyframes modalPopIn {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}
.timer-modal-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}
#timer-display {
    font-size: 6rem;
    font-weight: 700;
    line-height: 1;
    color: var(--primary-accent);
    font-family: 'Inter', monospace;
}
.timer-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
}

.timer-adjust-btn {
    background: var(--border-color);
    color: var(--text-primary);
    border-radius: 50%;
    width: 58px;
    height: 58px;
    font-size: 2.8rem;
    line-height: 58px;
    border: none;
    cursor: pointer;
    transition: all var(--transition-speed-fast) ease;
}
.timer-adjust-btn:hover {
    background-color: #4B5563;
    transform: scale(1.1);
}
.timer-adjust-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
}

.timer-close-custom-btn {
    background-color: var(--disabled-bg-color);
    color: var(--text-secondary);
    border: none;
    padding: 1rem 2rem;
    border-radius: var(--border-radius-medium);
    cursor: pointer;
    font-weight: 500;
    transition: all var(--transition-speed-fast) ease;
    margin-top: 1rem;
}
.timer-close-custom-btn:hover {
    background-color: #4a4a4e;
    color: var(--text-primary);
}