/* =========================================
   CSS Değişkenleri ve Tema
   ========================================= */
:root {
    /* Açık tema renkleri */
    --bg-gradient-start: #667eea;
    --bg-gradient-end: #764ba2;
    --card-bg: #ffffff;
    --card-bg-elev: #ffffff;
    --card-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    --text-primary: #2d3748;
    --text-secondary: #718096;
    --text-muted: #a0aec0;
    --input-bg: #f7fafc;
    --input-border: #e2e8f0;
    --input-focus: #667eea;
    --primary-color: #667eea;
    --primary-hover: #5a67d8;
    --secondary-color: #edf2f7;
    --secondary-hover: #e2e8f0;
    --secondary-text: #4a5568;
    --error-color: #e53e3e;
    --success-color: #48bb78;
    --warning-color: #ed8936;
    --info-color: #4299e1;

    /* Kategori renkleri */
    --color-underweight: #4299e1;
    --color-normal: #48bb78;
    --color-overweight: #ed8936;
    --color-obese: #e53e3e;

    /* Tasarım tokenleri */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 24px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* Koyu tema */
[data-theme="dark"] {
    --bg-gradient-start: #1a202c;
    --bg-gradient-end: #2d3748;
    --card-bg: #2d3748;
    --card-bg-elev: #374151;
    --card-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    --text-primary: #f7fafc;
    --text-secondary: #cbd5e0;
    --text-muted: #718096;
    --input-bg: #1a202c;
    --input-border: #4a5568;
    --input-focus: #9f7aea;
    --primary-color: #9f7aea;
    --primary-hover: #b794f4;
    --secondary-color: #4a5568;
    --secondary-hover: #718096;
    --secondary-text: #f7fafc;
}

/* =========================================
   Reset & Temel
   ========================================= */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-family);
    min-height: 100vh;
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
    background-attachment: fixed;
    color: var(--text-primary);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
    transition: background var(--transition);
    line-height: 1.6;
}

.hidden { display: none !important; }

/* =========================================
   Top Action Bar
   ========================================= */
.top-actions {
    position: fixed;
    top: 20px;
    right: 20px;
    display: flex;
    gap: 10px;
    z-index: 100;
}

.icon-btn {
    width: 46px;
    height: 46px;
    border-radius: 50%;
    border: none;
    background: var(--card-bg);
    color: var(--text-primary);
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition), background var(--transition);
}

.icon-btn:hover {
    transform: scale(1.1) rotate(8deg);
    background: var(--primary-color);
    color: #fff;
}

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

.icon-btn:focus-visible {
    outline: 3px solid var(--primary-color);
    outline-offset: 2px;
}

/* Install butonu - dikkat çekici parlama */
.install-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--bg-gradient-end));
    color: #fff !important;
    animation: pulse-glow 2s ease-in-out infinite;
}

.install-btn:hover {
    background: linear-gradient(135deg, var(--primary-hover), var(--bg-gradient-end));
    color: #fff !important;
}

@keyframes pulse-glow {
    0%, 100% { box-shadow: 0 4px 20px rgba(102, 126, 234, 0.5); }
    50%      { box-shadow: 0 4px 30px rgba(102, 126, 234, 0.9); }
}

/* Offline göstergesi */
.offline-banner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(90deg, var(--warning-color), #d97706);
    color: #fff;
    padding: 10px 20px;
    text-align: center;
    font-size: 0.9rem;
    font-weight: 500;
    z-index: 2000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    animation: slideDown 0.3s ease-out;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.offline-banner.online {
    background: linear-gradient(90deg, var(--success-color), #2f855a);
    animation: slideDown 0.3s ease-out, slideUp 0.3s ease-in 2s forwards;
}

@keyframes slideDown {
    from { transform: translateY(-100%); }
    to   { transform: translateY(0); }
}

/* =========================================
   Dil Seçici Dropdown
   ========================================= */
.lang-picker {
    position: relative;
}

.lang-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--card-bg);
    border-radius: var(--radius-md);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    list-style: none;
    padding: 6px;
    margin: 0;
    min-width: 160px;
    z-index: 110;
    animation: fadeIn 0.2s ease-out;
    border: 1px solid var(--input-border);
}

.lang-menu li { list-style: none; }

.lang-menu button {
    width: 100%;
    padding: 10px 14px;
    border: none;
    background: transparent;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
    text-align: left;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: background var(--transition);
    display: flex;
    align-items: center;
    gap: 10px;
}

.lang-menu button:hover { background: var(--input-bg); }
.lang-menu button.active {
    background: var(--input-bg);
    color: var(--primary-color);
    font-weight: 600;
}

/* =========================================
   Konteyner
   ========================================= */
.container {
    width: 100%;
    max-width: 1100px;
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    gap: 24px;
    margin: 40px auto;
}

/* =========================================
   Kart
   ========================================= */
.card {
    background: var(--card-bg);
    border-radius: var(--radius-xl);
    padding: 40px;
    box-shadow: var(--card-shadow);
    transition: background var(--transition), box-shadow var(--transition);
    animation: slideUp 0.6s ease-out;
}

.card-header {
    text-align: center;
    margin-bottom: 24px;
}

.logo {
    font-size: 3rem;
    margin-bottom: 12px;
    display: inline-block;
    animation: bounce 2s ease-in-out infinite;
}

.card-header h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
    background: linear-gradient(135deg, var(--primary-color), var(--bg-gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* =========================================
   Birim Switcher
   ========================================= */
.unit-switcher {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
    background: var(--input-bg);
    padding: 6px;
    border-radius: var(--radius-md);
    margin-bottom: 24px;
}

.unit-btn {
    padding: 10px 14px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-family: inherit;
    font-weight: 500;
    font-size: 0.9rem;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.unit-btn:hover { color: var(--text-primary); }

.unit-btn.active {
    background: var(--card-bg);
    color: var(--primary-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

/* =========================================
   Form
   ========================================= */
.form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

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

.optional {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 400;
}

.form-hint {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 4px;
    display: block;
}

.form-group input,
.form-group select {
    padding: 13px 16px;
    border: 2px solid var(--input-border);
    border-radius: var(--radius-md);
    background: var(--input-bg);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: all var(--transition);
    width: 100%;
}

.form-group input::placeholder { color: var(--text-muted); }

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--input-focus);
    background: var(--card-bg);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.15);
}

.form-group input.error { border-color: var(--error-color); animation: shake 0.4s ease-in-out; }

.form-group input[type="number"]::-webkit-inner-spin-button,
.form-group input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}
.form-group input[type="number"] { -moz-appearance: textfield; }

.error-message {
    color: var(--error-color);
    font-size: 0.85rem;
    min-height: 1.2em;
    font-weight: 500;
}

/* Çift input (ft + in) */
.dual-input {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

/* Radio kartlar */
.radio-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.radio-card {
    cursor: pointer;
    position: relative;
}

.radio-card input[type="radio"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.radio-card span {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 12px;
    border: 2px solid var(--input-border);
    background: var(--input-bg);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-weight: 500;
    transition: all var(--transition);
}

.radio-card:hover span { border-color: var(--primary-color); }

.radio-card input[type="radio"]:checked + span {
    border-color: var(--primary-color);
    background: var(--card-bg);
    color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.15);
}

.radio-card input[type="radio"]:focus-visible + span {
    outline: 3px solid var(--primary-color);
    outline-offset: 2px;
}

/* =========================================
   Detaylı Bölüm (details/summary)
   ========================================= */
.advanced-section {
    background: var(--input-bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--input-border);
    overflow: hidden;
    transition: background var(--transition);
}

.advanced-section summary {
    padding: 14px 18px;
    cursor: pointer;
    font-weight: 500;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
    user-select: none;
    list-style: none;
}

.advanced-section summary::-webkit-details-marker { display: none; }

.advanced-section .chevron {
    margin-left: auto;
    transition: transform var(--transition);
    color: var(--text-muted);
    font-size: 0.8rem;
}

.advanced-section[open] .chevron {
    transform: rotate(180deg);
}

.advanced-section summary:hover { background: var(--secondary-hover); }

.advanced-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    padding: 18px;
    border-top: 1px solid var(--input-border);
}

.advanced-grid .full-width { grid-column: 1 / -1; }

/* =========================================
   Butonlar
   ========================================= */
.button-group {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 12px;
    margin-top: 8px;
}

.btn {
    padding: 14px 24px;
    border: none;
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    white-space: nowrap;
}

.btn:focus-visible {
    outline: 3px solid var(--primary-color);
    outline-offset: 2px;
}

.btn:active { transform: scale(0.97); }

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    color: #fff;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.5);
}

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

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

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border: 2px solid var(--input-border);
    padding: 12px 18px;
    font-size: 0.9rem;
}

.btn-ghost:hover {
    background: var(--input-bg);
    color: var(--text-primary);
    border-color: var(--primary-color);
}

.btn-danger {
    color: var(--error-color);
    border-color: rgba(229, 62, 62, 0.3);
}

.btn-danger:hover {
    background: rgba(229, 62, 62, 0.1);
    border-color: var(--error-color);
}

/* =========================================
   Modal
   ========================================= */
.modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.55);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    animation: backdropFadeIn 0.3s ease-out;
}

.modal-dialog {
    position: relative;
    background: var(--card-bg);
    border-radius: var(--radius-xl);
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.35);
    width: 100%;
    max-width: 520px;
    max-height: calc(100vh - 40px);
    overflow-y: auto;
    padding: 36px 32px 28px;
    animation: modalZoomIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    transition: background var(--transition);
}

.modal-dialog.modal-lg { max-width: 640px; }

.modal.closing .modal-backdrop { animation: backdropFadeOut 0.25s ease-in forwards; }
.modal.closing .modal-dialog   { animation: modalZoomOut 0.25s ease-in forwards; }

.modal-close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 50%;
    background: var(--input-bg);
    color: var(--text-primary);
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition), transform var(--transition);
    z-index: 2;
}

.modal-close:hover { background: var(--secondary-hover); transform: rotate(90deg); }

.modal-close:focus-visible {
    outline: 3px solid var(--primary-color);
    outline-offset: 2px;
}

.modal-title {
    font-size: 1.4rem;
    color: var(--text-primary);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    padding-right: 40px;
}

.modal-actions {
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--input-border);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    flex-wrap: wrap;
}

body.modal-open { overflow: hidden; }

/* =========================================
   Tabs
   ========================================= */
.tabs {
    display: flex;
    gap: 4px;
    background: var(--input-bg);
    padding: 6px;
    border-radius: var(--radius-md);
    margin-bottom: 24px;
}

.tab-btn {
    flex: 1;
    padding: 10px 14px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-family: inherit;
    font-weight: 500;
    font-size: 0.9rem;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.tab-btn:hover { color: var(--text-primary); }

.tab-btn.active {
    background: var(--card-bg);
    color: var(--primary-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.tab-panel { animation: fadeIn 0.3s ease-out; }
.tab-panel[hidden] { display: none; }

/* =========================================
   Sonuç İçeriği
   ========================================= */
.result {
    padding: 24px 4px 8px;
    text-align: center;
    border-top: 5px solid var(--primary-color);
    transition: border-color var(--transition);
}

.result-title {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.bmi-value-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 16px;
}

.bmi-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 4px;
}

.bmi-value {
    font-size: 4rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
    background: linear-gradient(135deg, var(--primary-color), var(--bg-gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.bmi-unit {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.bmi-category {
    display: inline-block;
    padding: 8px 24px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    color: #fff;
    margin-bottom: 8px;
    background: var(--primary-color);
    transition: background var(--transition);
}

.bmi-percentile {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
    font-weight: 500;
}

.bmi-percentile strong {
    color: var(--primary-color);
    font-size: 0.95rem;
}

.bmi-category.underweight { background: var(--color-underweight); }
.bmi-category.normal      { background: var(--color-normal); }
.bmi-category.overweight  { background: var(--color-overweight); }
.bmi-category.obese       { background: var(--color-obese); }

.result.underweight { border-top-color: var(--color-underweight); }
.result.normal      { border-top-color: var(--color-normal); }
.result.overweight  { border-top-color: var(--color-overweight); }
.result.obese       { border-top-color: var(--color-obese); }

/* İlerleme çubuğu */
.progress-wrapper { margin: 24px 0; }

.progress-bar {
    position: relative;
    width: 100%;
    height: 12px;
    background: linear-gradient(to right,
        var(--color-underweight) 0%,
        var(--color-underweight) 18.75%,
        var(--color-normal) 18.75%,
        var(--color-normal) 40%,
        var(--color-overweight) 40%,
        var(--color-overweight) 60%,
        var(--color-obese) 60%,
        var(--color-obese) 100%
    );
    border-radius: 50px;
    overflow: visible;
}

.progress-fill {
    position: absolute;
    inset: 0;
    border-radius: 50px;
    background: rgba(255, 255, 255, 0.15);
    pointer-events: none;
}

.progress-indicator {
    position: absolute;
    top: 50%;
    left: 0;
    width: 22px;
    height: 22px;
    background: var(--card-bg);
    border: 4px solid var(--text-primary);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: left 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.progress-labels {
    display: flex;
    justify-content: space-between;
    margin-top: 10px;
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
}

.bmi-message {
    color: var(--text-secondary);
    margin: 16px 0;
    font-size: 0.95rem;
}

.health-tip {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
    background: var(--input-bg);
    border-radius: var(--radius-md);
    text-align: left;
    margin-top: 16px;
    border: 1px solid var(--input-border);
}

.tip-icon { font-size: 1.4rem; flex-shrink: 0; }

.health-tip p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* =========================================
   Sağlık Metrikleri Grid
   ========================================= */
.metrics-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    padding-top: 8px;
}

.metric-card {
    padding: 18px;
    background: var(--input-bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--input-border);
    text-align: center;
    transition: transform var(--transition), border-color var(--transition);
}

.metric-card:hover {
    transform: translateY(-3px);
    border-color: var(--primary-color);
}

.metric-card.full-width { grid-column: 1 / -1; }

.metric-icon {
    font-size: 1.8rem;
    margin-bottom: 8px;
}

.metric-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
    font-weight: 500;
}

.metric-value {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

.metric-sub {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

.metric-info {
    padding: 14px;
    background: rgba(102, 126, 234, 0.08);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--primary-color);
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* WHtR bar (sağlık riski göstergesi) */
.whtr-bar {
    position: relative;
    margin-top: 10px;
    height: 8px;
    border-radius: 50px;
    background: linear-gradient(to right,
        #4299e1 0%, #4299e1 25%,
        #48bb78 25%, #48bb78 50%,
        #ed8936 50%, #ed8936 75%,
        #e53e3e 75%, #e53e3e 100%);
    overflow: visible;
}

.whtr-fill {
    position: absolute;
    top: 50%;
    left: 0;
    width: 14px;
    height: 14px;
    background: var(--card-bg);
    border: 3px solid var(--text-primary);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: left 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.25);
}

/* Export sırasında butonları gizlemek için */
.exporting .modal-close,
.exporting .modal-actions,
.exporting .tabs {
    visibility: hidden;
}

.export-watermark {
    position: absolute;
    bottom: 8px;
    right: 12px;
    font-size: 0.75rem;
    color: var(--text-muted);
    opacity: 0.7;
    font-family: var(--font-family);
}

/* =========================================
   Geçmiş Listesi & Grafik
   ========================================= */
.chart-wrapper {
    background: var(--input-bg);
    border-radius: var(--radius-md);
    padding: 16px;
    margin-bottom: 20px;
    min-height: 220px;
    border: 1px solid var(--input-border);
}

#history-chart {
    width: 100%;
    height: 200px;
    display: block;
}

.chart-line {
    fill: none;
    stroke: var(--primary-color);
    stroke-width: 2.5;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-dasharray: 1000;
    stroke-dashoffset: 1000;
    animation: drawLine 1.2s ease-out forwards;
}

.chart-area {
    fill: var(--primary-color);
    opacity: 0.15;
}

.chart-grid-line {
    stroke: var(--input-border);
    stroke-width: 1;
    stroke-dasharray: 3 3;
}

.chart-point {
    cursor: pointer;
    transition: r var(--transition);
}

.chart-point:hover { r: 7; }

.chart-text {
    fill: var(--text-muted);
    font-size: 10px;
    font-family: var(--font-family);
}

.chart-empty {
    fill: var(--text-muted);
    font-size: 14px;
    text-anchor: middle;
    font-family: var(--font-family);
}

.history-list-wrapper { max-height: 280px; overflow-y: auto; margin-bottom: 12px; }

.history-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.history-item {
    display: grid;
    grid-template-columns: auto 1fr auto auto;
    gap: 12px;
    align-items: center;
    padding: 12px 14px;
    background: var(--input-bg);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--primary-color);
    transition: transform var(--transition);
    font-size: 0.9rem;
}

.history-item:hover { transform: translateX(4px); }

.history-item.underweight { border-left-color: var(--color-underweight); }
.history-item.normal      { border-left-color: var(--color-normal); }
.history-item.overweight  { border-left-color: var(--color-overweight); }
.history-item.obese       { border-left-color: var(--color-obese); }

.history-date {
    color: var(--text-muted);
    font-size: 0.8rem;
    min-width: 90px;
}

.history-meta { color: var(--text-secondary); font-size: 0.85rem; }

.history-bmi {
    font-weight: 700;
    color: var(--text-primary);
    font-size: 1rem;
}

.history-delete {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.1rem;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.history-delete:hover {
    background: rgba(229, 62, 62, 0.1);
    color: var(--error-color);
}

.history-empty {
    text-align: center;
    color: var(--text-muted);
    padding: 40px 20px;
    font-size: 0.95rem;
}

.history-empty span {
    display: block;
    font-size: 3rem;
    margin-bottom: 12px;
}

/* =========================================
   Kısayol Listesi
   ========================================= */
.shortcut-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 12px;
}

.shortcut-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    background: var(--input-bg);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.shortcut-list span { flex: 1; }

kbd {
    background: var(--card-bg);
    border: 1px solid var(--input-border);
    border-bottom-width: 2px;
    border-radius: 6px;
    padding: 3px 8px;
    font-family: ui-monospace, 'SF Mono', Menlo, monospace;
    font-size: 0.8rem;
    color: var(--text-primary);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    min-width: 26px;
    text-align: center;
}

/* =========================================
   Toast Bildirim
   ========================================= */
.toast-container {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: center;
    pointer-events: none;
}

.toast {
    background: var(--card-bg);
    color: var(--text-primary);
    padding: 14px 22px;
    border-radius: var(--radius-md);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    font-size: 0.9rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
    border-left: 4px solid var(--primary-color);
    min-width: 260px;
    max-width: 400px;
    pointer-events: auto;
    animation: toastSlideUp 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.toast.closing { animation: toastSlideDown 0.25s ease-in forwards; }

.toast.success { border-left-color: var(--success-color); }
.toast.error   { border-left-color: var(--error-color); }
.toast.warning { border-left-color: var(--warning-color); }
.toast.info    { border-left-color: var(--info-color); }

.toast-icon { font-size: 1.2rem; flex-shrink: 0; }

/* =========================================
   Info Card
   ========================================= */
.info-card {
    background: var(--card-bg);
    border-radius: var(--radius-xl);
    padding: 32px;
    box-shadow: var(--card-shadow);
    height: fit-content;
    position: sticky;
    top: 20px;
    transition: background var(--transition);
    animation: slideUp 0.6s ease-out 0.1s backwards;
}

.info-card h3 {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: 20px;
    font-weight: 600;
}

.category-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.category-item {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--input-bg);
    border-radius: var(--radius-md);
    transition: transform var(--transition);
}

.category-item:hover { transform: translateX(4px); }

.category-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    flex-shrink: 0;
}

.category-item.underweight .category-dot { background: var(--color-underweight); }
.category-item.normal      .category-dot { background: var(--color-normal); }
.category-item.overweight  .category-dot { background: var(--color-overweight); }
.category-item.obese       .category-dot { background: var(--color-obese); }

.category-name { color: var(--text-primary); font-weight: 500; font-size: 0.95rem; }
.category-range { color: var(--text-muted); font-size: 0.85rem; font-weight: 500; }

.info-footer {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--input-border);
}

.info-note {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.5;
    display: flex;
    gap: 8px;
}

/* =========================================
   Hatırlatıcı Modal
   ========================================= */
.reminder-intro {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 18px;
    line-height: 1.5;
}

.reminder-permission {
    background: var(--input-bg);
    border-radius: var(--radius-md);
    padding: 14px;
    margin-bottom: 18px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.perm-status {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.perm-icon { font-size: 1.4rem; }

.perm-status.granted { color: var(--success-color); }
.perm-status.denied  { color: var(--error-color); }

.reminder-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* Toggle switch */
.switch-row {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    padding: 12px;
    background: var(--input-bg);
    border-radius: var(--radius-md);
    transition: background var(--transition);
}

.switch-row:hover { background: var(--secondary-hover); }

.switch-row input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.switch-track {
    position: relative;
    width: 44px;
    height: 24px;
    background: var(--secondary-color);
    border-radius: 50px;
    transition: background var(--transition);
    flex-shrink: 0;
}

.switch-thumb {
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background: #fff;
    border-radius: 50%;
    transition: left var(--transition);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.switch-row input:checked + .switch-track {
    background: var(--primary-color);
}

.switch-row input:checked + .switch-track .switch-thumb {
    left: 22px;
}

.switch-row input:focus-visible + .switch-track {
    outline: 3px solid var(--primary-color);
    outline-offset: 2px;
}

.switch-label {
    font-weight: 500;
    color: var(--text-primary);
}

.reminder-next {
    margin-top: 8px;
    padding: 12px 14px;
    background: rgba(102, 126, 234, 0.1);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
    border-left: 3px solid var(--primary-color);
}

.reminder-next strong { color: var(--primary-color); margin-left: auto; }
.footer {
    margin-top: 24px;
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.85rem;
    text-align: center;
    padding: 16px;
}

[data-theme="dark"] .footer { color: rgba(255, 255, 255, 0.6); }

/* =========================================
   Animasyonlar
   ========================================= */
@keyframes slideUp {
    from { opacity: 0; transform: translateY(30px); }
    to   { opacity: 1; transform: translateY(0); }
}

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

@keyframes countUp {
    from { opacity: 0; transform: scale(0.5); }
    to   { opacity: 1; transform: scale(1); }
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(-8px); }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25%      { transform: translateX(-8px); }
    75%      { transform: translateX(8px); }
}

@keyframes backdropFadeIn  { from { opacity: 0; } to { opacity: 1; } }
@keyframes backdropFadeOut { from { opacity: 1; } to { opacity: 0; } }

@keyframes modalZoomIn {
    from { opacity: 0; transform: scale(0.85) translateY(20px); }
    to   { opacity: 1; transform: scale(1) translateY(0); }
}

@keyframes modalZoomOut {
    from { opacity: 1; transform: scale(1) translateY(0); }
    to   { opacity: 0; transform: scale(0.9) translateY(10px); }
}

@keyframes modalSlideUp {
    from { opacity: 0; transform: translateY(100%); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes toastSlideUp {
    from { opacity: 0; transform: translateY(30px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes toastSlideDown {
    from { opacity: 1; transform: translateY(0); }
    to   { opacity: 0; transform: translateY(20px); }
}

@keyframes drawLine {
    to { stroke-dashoffset: 0; }
}

/* =========================================
   Responsive
   ========================================= */
@media (max-width: 900px) {
    .container {
        grid-template-columns: 1fr;
        max-width: 600px;
    }
    .info-card { position: static; }
}

@media (max-width: 600px) {
    body { padding: 12px; }

    .card, .info-card { padding: 24px 20px; }

    .card-header h1 { font-size: 1.6rem; }
    .logo { font-size: 2.5rem; }
    .bmi-value { font-size: 3rem; }

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

    .top-actions { top: 12px; right: 12px; gap: 6px; }
    .icon-btn { width: 40px; height: 40px; font-size: 1.1rem; }

    .advanced-grid { grid-template-columns: 1fr; }
    .metrics-grid  { grid-template-columns: 1fr; }

    .modal { padding: 12px; align-items: flex-end; }

    .modal-dialog {
        padding: 32px 20px 20px;
        max-height: 92vh;
        border-radius: var(--radius-xl) var(--radius-xl) var(--radius-lg) var(--radius-lg);
        animation: modalSlideUp 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    }

    .modal-actions { justify-content: center; }
    .modal-actions .btn { flex: 1; min-width: 0; }

    .history-item {
        grid-template-columns: 1fr auto auto;
        gap: 8px;
    }
    .history-date { grid-column: 1 / -1; min-width: 0; }

    .toast { min-width: 0; width: calc(100vw - 24px); }
}

@media (max-width: 400px) {
    .card-header h1 { font-size: 1.4rem; }
    .bmi-value { font-size: 2.5rem; }
    .unit-btn { font-size: 0.8rem; padding: 8px; }
}

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

/* Scrollbar */
.history-list-wrapper::-webkit-scrollbar,
.modal-dialog::-webkit-scrollbar { width: 8px; }

.history-list-wrapper::-webkit-scrollbar-track,
.modal-dialog::-webkit-scrollbar-track { background: var(--input-bg); border-radius: 8px; }

.history-list-wrapper::-webkit-scrollbar-thumb,
.modal-dialog::-webkit-scrollbar-thumb {
    background: var(--input-border);
    border-radius: 8px;
}

.history-list-wrapper::-webkit-scrollbar-thumb:hover,
.modal-dialog::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }