:root {
    --primary: #007aff;
    --bg: #f2f2f7;
    --card: #ffffff;
    --text: #1c1c1e;
    --text-muted: #8e8e93;
    --border: #d1d1d6;
    --danger: #ff3b30;
    --success: #34c759;
    --accent: #5856d6;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.4;
    padding-bottom: 40px;
}

/* Header */
header {
    background-color: var(--card);
    padding: 12px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.header-main h1 {
    font-size: 1.2rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

#last-saved {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-weight: 500;
}

.header-controls {
    display: flex;
    gap: 8px;
}

.header-controls button {
    background: var(--bg);
    border: 1px solid var(--border);
    padding: 6px 10px;
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
}

/* Tabs */
.week-selector {

    display: flex;

    overflow-x: auto;

    gap: 8px;

    padding: 8px;

    scrollbar-width: none;

}

.week-selector::-webkit-scrollbar {
    display: none;
}

.tab-btn {
    flex: 0 0 auto;
    border: none;
    background: none;
    padding: 10px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-muted);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s;
}

.tab-btn.active {
    background: var(--primary);
    color: white;
    box-shadow: 0 2px 4px rgba(0, 122, 255, 0.3);
}

/* Content */
.week-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 0 16px 16px;
}

.week-info h2 {
    font-size: 1.1rem;
    font-weight: 700;
}

.btn-danger {
    background: none;
    border: 1px solid var(--danger);
    color: var(--danger);
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* Accordion */
.day-card {
    background: var(--card);
    margin: 0 16px 12px;
    border-radius: 14px;
    border: 1px solid var(--border);
    overflow: hidden;
}

.day-header {
    padding: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    user-select: none;
}

.day-header h3 {
    font-size: 1rem;
    font-weight: 700;
}

.day-header .arrow {
    font-size: 0.8rem;
    transition: transform 0.3s;
    color: var(--text-muted);
}

.day-card.open .arrow {
    transform: rotate(180deg);
}

.day-content {
    display: none;
    padding: 0 12px 16px;
    border-top: 1px solid var(--bg);
}

.day-card.open .day-content {
    display: block;
}

/* Exercise Row */
.exercise-row {
    background: white;
    padding: 14px;
    margin-bottom: 14px;
    border-radius: 12px;
    border: 1px solid var(--border);

    display: grid;
    grid-template-areas:
        "title title copy"
        "sets reps weight";

    grid-template-columns: 1fr 1fr 1fr;
    gap: 10px;

    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}


.ex-title-container {
    grid-area: title;
}

.ex-select {
    width: 100%;
    padding: 8px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    background: white;
}

.ex-copy-container {
    grid-area: copy;
    display: flex;
    justify-content: flex-end;
}

.btn-copy {
    background: var(--bg);
    border: 1px solid var(--border);
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 0.7rem;
    color: var(--accent);
    white-space: nowrap;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.input-group.sets {
    grid-area: sets;
}

.input-group.reps {
    grid-area: reps;
}

.input-group.weight {
    grid-area: weight;
}

.input-group label {
    font-size: 0.65rem;
    text-transform: uppercase;
    font-weight: 700;
    color: var(--text-muted);
}

.input-group input {
    width: 100%;
    padding: 8px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
}

.weight-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.weight-wrapper input {
    padding-right: 24px;
    font-size: 1.2rem;
    font-weight: 700;
}

.unit-toggle {
    position: absolute;
    right: 8px;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--primary);
    cursor: pointer;
}

.btn-add-ex {
    width: 100%;
    padding: 10px;
    margin-top: 12px;
    background: var(--bg);
    border: 1px dashed var(--border);
    border-radius: 10px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(4px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.exercise-row {
    animation: fadeIn 0.3s ease-out;
}


.peso-max {
    font-size: 0.7rem;
    margin-top: 4px;
    color: #888;
    font-weight: 600;
}













.btn-whatsapp {

    display: flex;
    align-items: center;
    gap: 6px;

    background: #25D366;
    color: #ffffff;

    border: none;

    padding: 6px 12px;

    border-radius: 20px;

    font-size: 0.8rem;
    font-weight: 700;

    cursor: pointer;

    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);

    transition: all 0.15s ease;

}

.btn-whatsapp:hover {

    background: #1ebe5d;

}

.btn-whatsapp:active {

    transform: scale(0.95);

}

.wa-logo {

    font-size: 0.9rem;

}


.header-controls .btn-whatsapp {

    display: flex;
    align-items: center;
    gap: 6px;

    background: #25D366;
    color: #ffffff;

    border: none;

    padding: 6px 12px;

    border-radius: 20px;

    font-size: 0.8rem;
    font-weight: 700;

    cursor: pointer;

    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);

    transition: all 0.15s ease;

}

.header-controls .btn-whatsapp:hover {
    background: #1ebe5d;
}

.header-controls .btn-whatsapp:active {
    transform: scale(0.95);
}





/* ========================================= */
/* MENÚ PRINCIPAL DESPLEGABLE                */
/* ========================================= */
.btn-menu {
    background: var(--card);
    border: 1px solid var(--border);
    padding: 6px 10px;
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 800;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: all 0.15s ease;
}

.btn-menu:active {
    transform: scale(0.95);
}

.menu-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 9999;
    display: flex;
    align-items: flex-end;
}

.menu-content {
    background: var(--card);
    width: 100%;
    border-radius: 20px 20px 0 0;
    padding: 20px 16px 30px;
    box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.1);
    animation: slideUpMenu 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 10px;
}

.menu-header h2 {
    font-size: 1.2rem;
    font-weight: 800;
}

.btn-close-menu {
    background: none;
    border: none;
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--text-muted);
    cursor: pointer;
}

.menu-items {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.menu-item-btn {
    background: var(--bg);
    border: 1px solid var(--border);
    padding: 14px;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 700;
    color: var(--text);
    text-align: left;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: background 0.2s;
}

.menu-item-btn:active {
    background: var(--border);
}

@keyframes slideUpMenu {
    from {
        transform: translateY(100%);
    }

    to {
        transform: translateY(0);
    }
}






/* MODAL PLAN PRO */

.modal {
    position: fixed;
    inset: 0;

    background: rgba(0, 0, 0, 0.35);

    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);

    z-index: 10000;
}




.modal-content {
    position: fixed;

    top: 50%;
    left: 50%;

    transform: translate(-50%, -50%);

    background: white;
    padding: 24px;
    border-radius: 16px;

    width: 90%;
    max-width: 360px;

    text-align: center;

    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);

    animation: modalPop 0.25s ease;
}

.alias-box {
    background: #f3f3f3;
    padding: 12px;
    border-radius: 8px;
    margin: 10px 0;
    font-weight: 700;
}

.modal button {
    width: 100%;
    margin-top: 10px;
    padding: 10px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 700;
}

#btn-transferido {
    background: #34c759;
    color: white;
}

#btn-cerrar-plan {
    background: #ddd;
}

@keyframes modalPop {
    from {
        transform: scale(0.9);
        opacity: 0;
    }

    to {
        transform: scale(1);
        opacity: 1;
    }
}

body {
    min-height: 100vh;
}


html,
body {
    height: auto;
    overflow-y: auto;
}

.day-card {
    overflow: visible;
}



/* ============================= */
/* BOTON ELIMINAR EJERCICIO (X)  */
/* ============================= */

.exercise-row {
    position: relative;
}

.delete-exercise {
    position: absolute;
    top: 8px;
    right: 8px;

    color: #ff0000;
    font-size: 18px;
    font-weight: bold;

    cursor: pointer;

    background: none;
    border: none;
}

.delete-exercise:hover {
    transform: scale(1.2);
}



/* ============================= */
/* BOTON ELIMINAR DIA (X)        */
/* ============================= */
.delete-day {
    color: #ff0000;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    background: none;
    border: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.delete-day:hover {
    transform: scale(1.2);
}


/* ============================= */
/* BOTON ELIMINAR SEMANA (X)     */
/* ============================= */
.tab-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.delete-week {
    color: #ff0000;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: transform 0.2s;
}

.delete-week:hover {
    transform: scale(1.3);
}




/* ========================================= */
/* MÓDULO CONTROL DE PESO CORPORAL           */
/* ========================================= */

.btn-weight {
    background: var(--card);
    border: 1px solid var(--border);
    padding: 6px 10px;
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
}

.weight-view {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: var(--bg);
    z-index: 9999;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.weight-header {
    background-color: var(--card);
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 16px;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.weight-header h2 {
    font-size: 1.2rem;
    font-weight: 800;
    margin: 0;
}

.btn-back {
    background: none;
    border: none;
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary);
    cursor: pointer;
}

.weight-main {
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.weight-card {
    background: var(--card);
    border-radius: 14px;
    padding: 16px;
    border: 1px solid var(--border);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

.weight-card h3 {
    margin-bottom: 12px;
    font-size: 1rem;
    font-weight: 700;
    color: var(--text);
}

.weight-form {
    display: flex;
    gap: 8px;
    align-items: center;
}

.weight-input {
    flex: 1;
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    min-width: 0;
    /* Para evitar desbordes en flex */
}

.btn-save-weight {
    background: var(--primary);
    color: white;
    border: none;
    padding: 10px 16px;
    border-radius: 8px;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
}

.btn-save-weight:active {
    transform: scale(0.95);
}

.weight-table {
    width: 100%;
    border-collapse: collapse;
}

.weight-table th,
.weight-table td {
    padding: 10px 4px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    font-size: 0.95rem;
}

.weight-table th {
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
}

.weight-table td {
    font-weight: 600;
}

.btn-delete-weight {
    color: var(--danger);
    background: none;
    border: none;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    text-align: right;
    width: 100%;
}



/* ========================================= */
/* MÓDULO PROGRESO DE EJERCICIOS             */
/* ========================================= */

.progress-view {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: var(--bg);
    z-index: 9999;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.progress-header {
    background-color: var(--card);
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 16px;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.progress-header h2 {
    font-size: 1.1rem;
    font-weight: 800;
    margin: 0;
}

.progress-main {
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.progress-card {
    background: var(--card);
    border-radius: 14px;
    padding: 16px;
    border: 1px solid var(--border);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

.progress-card h3 {
    margin-bottom: 12px;
    font-size: 1rem;
    font-weight: 700;
    color: var(--text);
}

.progress-form-col {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.progress-input {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    background: white;
}

.btn-save-progress {
    background: var(--primary);
    color: white;
    border: none;
    padding: 12px;
    border-radius: 8px;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
}

.btn-save-progress:active {
    transform: scale(0.95);
}

.progress-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.progress-table th,
.progress-table td {
    padding: 8px 4px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.progress-table th {
    font-weight: 700;
    color: var(--text-muted);
}

.progress-table td {
    font-weight: 600;
}

.btn-delete-progress {
    color: var(--danger);
    background: none;
    border: none;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
}