/* =====================================================
   FONT IMPORTS
   ===================================================== */

@font-face {
    font-family: 'Plus Jakarta Sans';
    src: url('../fonts/Plus_Jakarta_Sans/PlusJakartaSans-Light.ttf') format('truetype');
    font-weight: 300;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Plus Jakarta Sans';
    src: url('../fonts/Plus_Jakarta_Sans/PlusJakartaSans-LightItalic.ttf') format('truetype');
    font-weight: 300;
    font-style: italic;
    font-display: swap;
}

@font-face {
    font-family: 'Plus Jakarta Sans';
    src: url('../fonts/Plus_Jakarta_Sans/PlusJakartaSans-Regular.ttf') format('truetype');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Plus Jakarta Sans';
    src: url('../fonts/Plus_Jakarta_Sans/PlusJakartaSans-Italic.ttf') format('truetype');
    font-weight: 400;
    font-style: italic;
    font-display: swap;
}

@font-face {
    font-family: 'Plus Jakarta Sans';
    src: url('../fonts/Plus_Jakarta_Sans/PlusJakartaSans-Medium.ttf') format('truetype');
    font-weight: 500;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Plus Jakarta Sans';
    src: url('../fonts/Plus_Jakarta_Sans/PlusJakartaSans-MediumItalic.ttf') format('truetype');
    font-weight: 500;
    font-style: italic;
    font-display: swap;
}

@font-face {
    font-family: 'Plus Jakarta Sans';
    src: url('../fonts/Plus_Jakarta_Sans/PlusJakartaSans-SemiBold.ttf') format('truetype');
    font-weight: 600;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Plus Jakarta Sans';
    src: url('../fonts/Plus_Jakarta_Sans/PlusJakartaSans-SemiBoldItalic.ttf') format('truetype');
    font-weight: 600;
    font-style: italic;
    font-display: swap;
}

@font-face {
    font-family: 'Plus Jakarta Sans';
    src: url('../fonts/Plus_Jakarta_Sans/PlusJakartaSans-Bold.ttf') format('truetype');
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Plus Jakarta Sans';
    src: url('../fonts/Plus_Jakarta_Sans/PlusJakartaSans-BoldItalic.ttf') format('truetype');
    font-weight: 700;
    font-style: italic;
    font-display: swap;
}

@font-face {
    font-family: 'Plus Jakarta Sans';
    src: url('../fonts/Plus_Jakarta_Sans/PlusJakartaSans-ExtraBold.ttf') format('truetype');
    font-weight: 800;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Plus Jakarta Sans';
    src: url('../fonts/Plus_Jakarta_Sans/PlusJakartaSans-ExtraBoldItalic.ttf') format('truetype');
    font-weight: 800;
    font-style: italic;
    font-display: swap;
}

/* =====================================================
   CSS VARIABLES & THEME SYSTEM
   ===================================================== */

:root {
    --primary: #2FBF71;
    --primary-light: #58CE8C;
    --primary-dark: #249A5B;
    --success-bg: rgba(47, 191, 113, 0.12);
    --font-primary: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-display: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --header-height: 70px;
    --gradient-primary: linear-gradient(135deg, #2FBF71 0%, #249A5B 100%);
    --gradient-hero: linear-gradient(135deg, #2FBF71 0%, #58CE8C 100%);
    --shadow-glow: 0 0 40px rgba(47, 191, 113, 0.25);
    --shadow-glow-lg: 0 0 60px rgba(47, 191, 113, 0.3);
}

/* =====================================================
   LIGHT THEME OVERRIDES
   ===================================================== */
[data-bs-theme="light"] {
    --mt-bg: #FFFFFF;
    --mt-bg-secondary: #F9F9F9;
    --mt-bg-tertiary: #F6F6F6;
    --mt-bg-card: #F9F9F9;
    --mt-bg-card-hover: #F0F0F0;
    --mt-bg-elevated: #F6F6F6;
    --mt-text: #000000;
    --mt-text-secondary: #636363;
    --mt-text-tertiary: #7B7B7B;
    --mt-text-muted: #B9B9B9;
    --mt-border: rgba(0, 0, 0, 0.08);
    --mt-border-secondary: rgba(0, 0, 0, 0.12);
    --mt-header-bg: rgba(255, 255, 255, 0.95);
    --mt-nav-bg: #FFFFFF;
}

[data-bs-theme="light"] .theme-icon-dark { display: none; }
[data-bs-theme="light"] .theme-icon-light { display: inline; }

/* =====================================================
   DARK THEME OVERRIDES
   ===================================================== */
[data-bs-theme="dark"] {
    --mt-bg: #141920;
    --mt-bg-secondary: #1a1f27;
    --mt-bg-tertiary: #1e242c;
    --mt-bg-card: #1c2129;
    --mt-bg-card-hover: #242a33;
    --mt-bg-elevated: #272e37;
    --mt-text: #FFFFFF;
    --mt-text-secondary: rgba(255, 255, 255, 0.7);
    --mt-text-tertiary: rgba(255, 255, 255, 0.5);
    --mt-text-muted: rgba(255, 255, 255, 0.4);
    --mt-border: rgba(255, 255, 255, 0.08);
    --mt-border-secondary: rgba(255, 255, 255, 0.12);
    --mt-header-bg: rgba(20, 25, 32, 0.92);
    --mt-nav-bg: #141920;
}

[data-bs-theme="dark"] .theme-icon-dark { display: inline; }
[data-bs-theme="dark"] .theme-icon-light { display: none; }

/* =====================================================
   BASE STYLES
   ===================================================== */

body {
    font-family: var(--font-primary);
    background-color: var(--mt-bg);
    color: var(--mt-text);
    transition: background-color 0.3s ease, color 0.3s ease;
}

::selection {
    background: var(--primary);
    color: #ffffff;
}

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--mt-border-secondary); border-radius: 9999px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary); }

.page-content {
    min-height: calc(100vh - var(--header-height));
    padding-top: var(--header-height);
    display: flex;
    flex-direction: column;
}

/* =====================================================
   NAVBAR
   ===================================================== */

.mt-navbar {
    background: var(--mt-header-bg) !important;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--mt-border);
    height: var(--header-height);
    transition: background-color 0.3s ease, border-color 0.3s ease;
    padding: 0;
}

.mt-navbar .container {
    height: 100%;
    display: flex;
    align-items: center;
}

.navbar-logo {
    height: 40px;
    width: 40px;
    object-fit: cover;
    border-radius: 50%;
    border: 2px solid var(--mt-border);
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: all 0.15s ease;
}

.navbar-logo:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
    transform: scale(1.05);
}

.mt-navbar .nav-link {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--mt-text-tertiary);
    border-radius: 0.75rem;
    transition: color 0.15s ease, background-color 0.15s ease;
    letter-spacing: 0.01em;
}

.mt-navbar .nav-link:hover {
    color: var(--mt-text);
    background: var(--mt-bg-elevated);
}

.mt-navbar .nav-link.active {
    color: var(--primary);
    background: var(--success-bg);
}

.btn-icon {
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 0.75rem;
    color: var(--mt-text-secondary);
    background: var(--mt-bg-elevated);
    border: 1px solid var(--mt-border);
    transition: all 0.15s ease;
    padding: 0;
}

.btn-icon:hover {
    color: var(--primary);
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
}

.btn-signin {
    padding: 0.5rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--mt-text) !important;
    background: rgba(47, 191, 113, 0.4);
    border: 1px solid rgba(47, 191, 113, 0.9);
    border-radius: 9999px;
    transition: all 0.15s ease;
}

.btn-signin:hover {
    background: rgba(47, 191, 113, 0.55);
    box-shadow: var(--shadow-glow);
    transform: translateY(-1px);
    color: var(--mt-text) !important;
}

.user-welcome {
    color: var(--mt-text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
}

.user-welcome strong {
    color: var(--primary);
}

@media (max-width: 991.98px) {
    .mt-navbar .navbar-collapse {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--mt-nav-bg);
        padding: 1.5rem 1rem;
        z-index: 1000;
    }
    .mt-navbar .nav-link {
        font-size: 1rem;
        padding: 1rem;
        border-radius: 1rem;
    }
    .btn-signin span { display: none !important; }
    .btn-signin {
        width: 38px;
        height: 38px;
        padding: 0;
        justify-content: center;
        border-radius: 0.75rem;
    }
}

/* =====================================================
   HOME PAGE
   ===================================================== */

.hero-section {
    padding: 4rem 0 6rem;
    background: var(--mt-bg-tertiary);
    position: relative;
    z-index: 1;
    overflow: hidden;
}

.hero-section::after {
    display: none;
}

.hero-inner {
    position: relative;
    z-index: 2;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.03em;
    color: var(--mt-text);
}

.hero-accent {
    background: var(--gradient-hero);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--mt-text-secondary);
    line-height: 1.625;
    max-width: 520px;
}

.btn-mt-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 9999px;
    background: var(--gradient-primary);
    color: #fff !important;
    border: none;
    box-shadow: var(--shadow-glow);
    transition: all 0.15s ease;
    text-decoration: none;
}

.btn-mt-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-lg);
    color: #fff !important;
}

.btn-mt-secondary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 9999px;
    background: transparent;
    color: var(--mt-text);
    border: 2px solid var(--mt-border-secondary);
    transition: all 0.15s ease;
    text-decoration: none;
}

.btn-mt-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
}

/* Mood Widget */
.mood-widget {
    background: var(--mt-bg-card);
    border: 1px solid var(--mt-border);
    border-radius: 1.25rem;
    padding: 1.5rem;
    box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1);
}

.mood-widget-title {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 600;
}

.mood-face {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: 1px solid var(--mt-border);
    background: var(--mt-bg-elevated);
    padding: 6px;
    cursor: pointer;
    transition: all 0.15s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mood-face img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 5%;
}

.mood-face:hover {
    border-color: var(--primary);
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

.mood-face.active {
    border-color: var(--primary);
    background: var(--success-bg);
    transform: scale(1.12);
    box-shadow: var(--shadow-glow);
}

/* Quick Actions */
.quick-section {
    padding: 5rem 0 3rem;
    position: relative;
    z-index: 2;
}

.section-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.quick-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem;
    background: var(--mt-bg-card);
    border: 1px solid var(--mt-border);
    border-radius: 1rem;
    text-decoration: none;
    color: inherit;
    transition: all 0.15s ease;
}

.quick-card:hover {
    border-color: var(--primary);
    background: var(--mt-bg-card-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    color: inherit;
}

.quick-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--success-bg);
    border-radius: 0.75rem;
    color: var(--primary);
    flex-shrink: 0;
    font-size: 1.25rem;
}

.quick-label {
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 2px;
}

.quick-desc {
    font-size: 0.75rem;
    color: var(--mt-text-tertiary);
    margin: 0;
}

/* Features Section */
.features-section {
    padding: 3rem 0 5rem;
    position: relative;
    z-index: 1;
}

.feature-card {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.feature-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--success-bg);
    border-radius: 1.25rem;
    color: var(--primary);
    font-size: 1.5rem;
    transition: all 0.15s ease;
}

.feature-card:hover .feature-icon {
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
}

.feature-desc {
    font-size: 1rem;
    color: var(--mt-text-secondary);
    line-height: 1.625;
    max-width: 280px;
}

@media (max-width: 768px) {
    .hero-section { padding: 2rem 0 4rem; }
    .hero-section::after { bottom: -54px; height: 110px; transform: skewY(-5deg); }
    .mood-face { width: 46px; height: 46px; }
    .quick-section { padding: 4rem 0 2rem; }
}

/* =====================================================
   AUTH PAGES (Sign In / Register)
   ===================================================== */

.auth-section {
    flex: 1;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 4rem 1.5rem;
    animation: fadeInUp 0.6s ease;
}

.auth-card {
    width: 100%;
    max-width: 420px;
    padding: 3rem;
    background: var(--mt-bg-card);
    border: 1px solid var(--mt-border);
    border-radius: 1.25rem;
    box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1);
    transition: all 0.15s ease;
    animation: fadeIn 0.4s ease 0.2s both;
}

.auth-card:hover {
    box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1);
    transform: translateY(-2px);
}

.auth-title {
    font-family: var(--font-display);
    font-size: 1.875rem;
    font-weight: 700;
    text-align: center;
    letter-spacing: -0.02em;
    background: var(--gradient-hero);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.auth-subtitle {
    color: var(--mt-text-secondary);
    font-size: 1rem;
    text-align: center;
    line-height: 1.625;
}

.mt-input {
    width: 100%;
    padding: 1rem;
    background: var(--mt-bg);
    border: 1px solid var(--mt-border);
    border-radius: 0.75rem;
    color: var(--mt-text);
    font-size: 1rem;
    font-family: var(--font-primary);
    transition: all 0.15s ease;
}

.mt-input:focus {
    border-color: var(--primary);
    outline: none;
    box-shadow: 0 0 0 3px var(--success-bg), var(--shadow-glow);
    transform: translateY(-1px);
}

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

.mt-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--mt-text);
    margin-bottom: 0.5rem;
    display: block;
}

.btn-submit {
    width: 100%;
    padding: 1rem 1.5rem;
    background: var(--gradient-primary);
    color: #fff;
    border: none;
    border-radius: 9999px;
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font-primary);
    cursor: pointer;
    transition: all 0.15s ease;
    box-shadow: var(--shadow-glow);
    position: relative;
    overflow: hidden;
}

.btn-submit:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-lg);
}

.btn-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.auth-footer {
    color: var(--mt-text-secondary);
    font-size: 0.875rem;
    text-align: center;
}

.auth-footer a {
    color: var(--primary);
    font-weight: 500;
    text-decoration: none;
}

.auth-footer a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.auth-error {
    padding: 0.75rem 1rem;
    background: rgba(230, 30, 30, 0.1);
    border: 1px solid #E61E1E;
    border-radius: 0.75rem;
    color: #E61E1E;
    font-size: 0.875rem;
    text-align: center;
    animation: fadeIn 0.3s ease;
}

/* =====================================================
   AI CHAT PAGE
   ===================================================== */

.ai-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 2rem 1.5rem;
    max-height: calc(100vh - var(--header-height));
}

.ai-container {
    width: 100%;
    max-width: 640px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    gap: 1.5rem;
}

.ai-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.ai-chat {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
    background: var(--mt-bg-card);
    border: 1px solid var(--mt-border);
    border-radius: 1.25rem;
    overflow: hidden;
}

.ai-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.ai-message {
    display: flex;
    gap: 0.75rem;
    max-width: 85%;
    animation: fadeIn 0.3s ease;
}

.ai-message.user {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.ai-avatar {
    width: 32px;
    height: 32px;
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    background: var(--mt-bg-elevated);
    color: var(--mt-text-secondary);
    border: 1px solid var(--mt-border);
    font-size: 0.875rem;
}

.ai-message.assistant .ai-avatar {
    color: var(--primary);
    border-color: var(--primary);
}

.ai-bubble {
    padding: 1rem 1.25rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    line-height: 1.625;
}

.ai-message.assistant .ai-bubble {
    background: var(--mt-bg-elevated);
    color: var(--mt-text);
    border-bottom-left-radius: 0.375rem;
}

.ai-message.user .ai-bubble {
    background: var(--primary);
    color: #fff;
    border-bottom-right-radius: 0.375rem;
}

.typing-indicator {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 1rem 1.25rem;
}

.typing-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--mt-text-muted);
    animation: typingBounce 1.4s infinite ease-in-out;
}

.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }

.ai-input-area {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    border-top: 1px solid var(--mt-border);
    background: var(--mt-bg-secondary);
}

.ai-input {
    flex: 1;
    padding: 0.75rem 1rem;
    background: var(--mt-bg);
    border: 1px solid var(--mt-border);
    border-radius: 1rem;
    color: var(--mt-text);
    font-size: 0.875rem;
    font-family: var(--font-primary);
    resize: none;
    line-height: 1.5;
    transition: border-color 0.15s ease;
}

.ai-input:focus {
    border-color: var(--primary);
    outline: none;
}

.ai-input::placeholder {
    color: var(--mt-text-muted);
}

.ai-send {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 0.75rem;
    background: var(--gradient-primary);
    color: #fff;
    border: none;
    flex-shrink: 0;
    transition: all 0.15s ease;
    cursor: pointer;
}

.ai-send:hover:not(:disabled) {
    box-shadow: var(--shadow-glow);
    transform: translateY(-1px);
}

.ai-send:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

@media (max-width: 768px) {
    .ai-section { padding: 1rem; max-height: calc(100vh - 60px); }
    .ai-message { max-width: 90%; }
}

/* =====================================================
   TRACK PAGE
   ===================================================== */

.track-section {
    flex: 1;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 4rem 1.5rem;
}

.track-container {
    width: 100%;
    max-width: 520px;
}

.track-title {
    font-family: var(--font-display);
    font-size: 1.875rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.track-mood-image {
    width: 80px;
    height: 80px;
    object-fit: contain;
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.track-mood-label {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--primary);
}

/* Mood Slider */
.track-slider {
    width: 100%;
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    border-radius: 9999px;
    outline: none;
    cursor: pointer;
    background: var(--mt-border-secondary);
    position: relative;
}

.track-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--mt-bg);
    border: 3px solid var(--primary);
    box-shadow: 0 2px 12px rgba(47, 191, 113, 0.3);
    cursor: grab;
    transition: all 0.2s ease;
}

.track-slider::-webkit-slider-thumb:hover {
    transform: scale(1.15);
    box-shadow: 0 4px 16px rgba(47, 191, 113, 0.4);
}

.track-slider::-moz-range-thumb {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--mt-bg);
    border: 3px solid var(--primary);
    box-shadow: 0 2px 12px rgba(47, 191, 113, 0.3);
    cursor: grab;
}

.slider-label {
    font-size: 0.75rem;
    color: var(--mt-text-muted);
    transition: color 0.15s ease;
}

.slider-label.active {
    color: var(--primary);
    font-weight: 500;
}

.track-journal {
    width: 100%;
    padding: 1.25rem;
    background: var(--mt-bg-card);
    border: 1px solid var(--mt-border);
    border-radius: 1rem;
    color: var(--mt-text);
    font-size: 1rem;
    font-family: var(--font-primary);
    line-height: 1.625;
    resize: vertical;
    min-height: 140px;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.track-journal:focus {
    border-color: var(--primary);
    outline: none;
    box-shadow: 0 0 0 3px var(--success-bg);
}

.track-journal::placeholder {
    color: var(--mt-text-muted);
}

@media (max-width: 768px) {
    .track-section { padding: 2.5rem 1rem; }
}

/* =====================================================
   TOOLS PAGE
   ===================================================== */

.tools-section {
    flex: 1;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 2rem 1.5rem;
}

.tools-container {
    width: 100%;
    max-width: 800px;
}

.tools-title {
    font-family: var(--font-display);
    font-size: 1.875rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.tool-card {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
    padding: 1.5rem;
    background: var(--mt-bg-card);
    border: 1px solid var(--mt-border);
    border-radius: 1.25rem;
    text-align: left;
    transition: all 0.15s ease;
    cursor: pointer;
    width: 100%;
    font-family: var(--font-primary);
    color: var(--mt-text);
}

.tool-card:hover {
    border-color: var(--primary);
    background: var(--mt-bg-card-hover);
    transform: translateY(-2px);
    box-shadow: 0 16px 48px rgba(0,0,0,0.12);
}

.tool-card-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin: 0;
}

.tool-card-desc {
    font-size: 0.875rem;
    color: var(--mt-text-secondary);
    margin: 0;
}

/* Exercise View */
.exercise-view {
    max-width: 500px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

.exercise-back {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--mt-text-tertiary);
    font-size: 0.875rem;
    font-weight: 500;
    background: none;
    border: none;
    cursor: pointer;
    font-family: var(--font-primary);
    transition: color 0.15s ease;
    padding: 0;
    text-decoration: none;
}

.exercise-back:hover {
    color: var(--primary);
}

.exercise-header-icon {
    color: var(--primary);
    animation: float 3s ease-in-out infinite;
    font-size: 1.25rem;
}

.exercise-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.exercise-subtitle {
    color: var(--mt-text-secondary);
    font-size: 0.875rem;
    max-width: 320px;
    line-height: 1.625;
}

/* Breathing circle */
.breathing-circle {
    position: relative;
    width: 220px;
    height: 220px;
}

.breathing-circle svg {
    width: 100%;
    height: 100%;
}

.breathing-circle .circle-bg {
    fill: none;
    stroke: var(--mt-border);
    stroke-width: 2;
}

.breathing-circle .circle-progress {
    fill: none;
    stroke: var(--primary);
    stroke-width: 3;
    stroke-linecap: round;
    transition: stroke-dashoffset 0.3s ease;
}

.circle-content {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.phase-label {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--mt-text);
}

.phase-timer {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--primary);
    font-variant-numeric: tabular-nums;
}

.circle-glow {
    position: absolute;
    inset: -20px;
    background: radial-gradient(circle, var(--success-bg) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
}

.circle-glow.active {
    opacity: 1;
    animation: glowPulse 4s ease-in-out infinite;
}

.exercise-timer {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary);
    font-variant-numeric: tabular-nums;
    text-align: center;
    position: relative;
}

.exercise-timer::before {
    content: '';
    position: absolute;
    inset: -10px;
    background: radial-gradient(circle, var(--success-bg) 0%, transparent 70%);
    z-index: -1;
}

/* Exercise steps */
.exercise-step {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--mt-bg-card);
    border: 1px solid var(--mt-border);
    border-radius: 1rem;
    transition: all 0.15s ease;
    position: relative;
    overflow: hidden;
}

.exercise-step.active {
    border-color: var(--primary);
    background: var(--mt-bg-card-hover);
    animation: stepGlow 2s ease-in-out infinite;
}

.step-number {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--mt-bg-elevated);
    color: var(--mt-text-tertiary);
    font-weight: 600;
    border-radius: 9999px;
    flex-shrink: 0;
    font-size: 0.875rem;
    transition: all 0.15s ease;
}

.exercise-step.active .step-number {
    background: var(--primary);
    color: #fff;
    transform: scale(1.1);
    box-shadow: var(--shadow-glow-lg);
}

.step-title {
    font-weight: 600;
    color: var(--mt-text);
    margin-bottom: 0.25rem;
}

.step-desc {
    font-size: 0.875rem;
    color: var(--mt-text-secondary);
    line-height: 1.625;
    margin: 0;
}

.exercise-input {
    width: 100%;
    padding: 1rem;
    background: var(--mt-bg-card);
    border: 1px solid var(--mt-border);
    border-radius: 1rem;
    color: var(--mt-text);
    font-size: 1rem;
    font-family: var(--font-primary);
    transition: all 0.15s ease;
}

.exercise-input:focus {
    border-color: var(--primary);
    outline: none;
    box-shadow: 0 0 0 3px var(--success-bg);
}

.exercise-input::placeholder {
    color: var(--mt-text-muted);
}

/* Exercise stage pills (box breathing) */
.stage-pill {
    padding: 0.5rem 1rem;
    border-radius: 9999px;
    border: 1px solid var(--mt-border);
    color: var(--mt-text-secondary);
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    transition: all 0.15s ease;
    background: transparent;
}

.stage-pill.active {
    border-color: var(--primary);
    color: var(--mt-text);
    background: var(--success-bg);
}

/* Progress bar */
.exercise-progress {
    width: 100%;
    height: 4px;
    background: var(--mt-bg-elevated);
    border-radius: 9999px;
    overflow: hidden;
}

.exercise-progress-bar {
    height: 100%;
    background: var(--gradient-primary);
    transition: width 0.5s ease;
    box-shadow: 0 0 10px rgba(58, 127, 240, 0.35);
}

@media (max-width: 768px) {
    .breathing-circle { width: 180px; height: 180px; }
    .exercise-timer { font-size: 2.25rem; }
}

/* =====================================================
   PROFILE PAGE
   ===================================================== */

.profile-section {
    flex: 1;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 4rem 1.5rem;
}

.profile-container {
    width: 100%;
    max-width: 420px;
}

.profile-avatar {
    width: 72px;
    height: 72px;
    border-radius: 9999px;
    background: var(--mt-bg-elevated);
    border: 2px solid var(--mt-border-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--mt-text-tertiary);
    font-size: 1.75rem;
}

.profile-name {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.profile-email {
    color: var(--mt-text-tertiary);
    font-size: 0.875rem;
}

.profile-menu-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    width: 100%;
    padding: 1rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--mt-text-secondary);
    background: var(--mt-bg-card);
    border: 1px solid var(--mt-border);
    border-radius: 1rem;
    transition: all 0.15s ease;
    text-align: left;
    cursor: pointer;
    font-family: var(--font-primary);
}

.profile-menu-item:hover {
    color: var(--mt-text);
    border-color: var(--primary);
    background: var(--mt-bg-card-hover);
}

.profile-menu-item.danger {
    color: #E61E1E;
}

.profile-menu-item.danger:hover {
    color: #ff4d4d;
    border-color: #E61E1E;
}

.profile-footer {
    color: var(--mt-text-muted);
    font-size: 0.75rem;
}

/* =====================================================
   ANIMATIONS
   ===================================================== */

@keyframes typingBounce {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
    30% { transform: translateY(-4px); opacity: 1; }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

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

@keyframes breathePulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes countPulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.05); opacity: 0.8; }
}

@keyframes glowPulse {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.05); }
}

@keyframes timerGlow {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 4px 20px rgba(0,0,0,0.08); }
    50% { box-shadow: var(--shadow-glow); }
}

@keyframes stepGlow {
    0%, 100% { box-shadow: 0 0 0 0 var(--success-bg); }
    50% { box-shadow: 0 0 20px var(--success-bg); }
}