/* ==================== RESET & BASE ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Light Mode Colors (Default) */
    --bg-gradient-start: #ffc4e1;
    --bg-gradient-mid: #c8f3e6;
    --bg-gradient-end: #e0c3fc;
    --card-bg: rgba(255, 255, 255, 0.25);
    --card-border: rgba(255, 255, 255, 0.3);
    --text-primary: #2d3436;
    --text-secondary: #636e72;
    --input-bg: rgba(255, 255, 255, 0.6);
    --input-border: rgba(255, 255, 255, 0.4);
    --tab-active-bg: rgba(255, 255, 255, 0.9);
    --alarm-card-bg: rgba(255, 255, 255, 0.35);
    --friend-card-bg: rgba(255, 255, 255, 0.3);
}

body.dark-mode {
    /* Dark Mode Colors */
    --bg-gradient-start: #1a2332;
    --bg-gradient-mid: #2d4a5c;
    --bg-gradient-end: #4a2d52;
    --card-bg: rgba(45, 55, 72, 0.6);
    --card-border: rgba(255, 255, 255, 0.1);
    --text-primary: #e2e8f0;
    --text-secondary: #a0aec0;
    --input-bg: rgba(45, 55, 72, 0.8);
    --input-border: rgba(255, 255, 255, 0.15);
    --tab-active-bg: rgba(100, 200, 200, 0.3);
    --alarm-card-bg: rgba(45, 55, 72, 0.7);
    --friend-card-bg: rgba(45, 55, 72, 0.6);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(180deg, var(--bg-gradient-start) 0%, var(--bg-gradient-mid) 50%, var(--bg-gradient-end) 100%);
    min-height: 100vh;
    color: var(--text-primary);
    transition: background 0.5s ease, color 0.3s ease;
}

.container {
    max-width: 420px;
    margin: 0 auto;
    padding: 20px;
    position: relative;
    z-index: 1;
}

/* ==================== THEME TOGGLE ==================== */
.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--card-border);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    transition: all 0.3s ease;
    z-index: 1000;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.theme-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

/* ==================== SCREENS ==================== */
.screen {
    display: none;
    min-height: 100vh;
    animation: fadeIn 0.6s ease;
}

.screen.active {
    display: block;
}

/* ==================== AUTH SCREEN ==================== */
.auth-box {
    background: var(--card-bg);
    backdrop-filter: blur(40px);
    -webkit-backdrop-filter: blur(40px);
    border-radius: 35px;
    padding: 45px 30px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
    max-width: 380px;
    margin: 100px auto;
    text-align: center;
    border: 1px solid var(--card-border);
    transition: all 0.3s ease;
}

.logo {
    font-size: 32px;
    margin-bottom: 8px;
    font-weight: 700;
    color: var(--text-primary);
}

.tagline {
    color: var(--text-secondary);
    margin-bottom: 30px;
    font-size: 14px;
}

/* Tabs */
.tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 25px;
    background: rgba(255, 255, 255, 0.1);
    padding: 5px;
    border-radius: 25px;
}

.tab {
    flex: 1;
    padding: 11px;
    border: none;
    background: transparent;
    border-radius: 20px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s ease;
    color: var(--text-secondary);
}

.tab.active {
    background: var(--tab-active-bg);
    color: var(--text-primary);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* Forms */
.auth-form {
    display: none;
}

.auth-form.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

.form-group {
    margin-bottom: 15px;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 14px 18px;
    border: 1.5px solid var(--input-border);
    border-radius: 20px;
    font-size: 14px;
    transition: all 0.3s ease;
    background: var(--input-bg);
    color: var(--text-primary);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: rgba(100, 200, 200, 0.5);
    box-shadow: 0 0 0 3px rgba(100, 200, 200, 0.1);
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 12px;
    text-align: left;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Buttons */
.btn {
    padding: 14px 28px;
    border: none;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
}

.btn-primary {
    background: var(--tab-active-bg);
    color: var(--text-primary);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.btn-small {
    padding: 9px 18px;
    width: auto;
    font-size: 13px;
}

.btn-success {
    background: #10b981;
    color: white;
}

.btn-warning {
    background: #fbbf24;
    color: #2d3436;
}

.btn-danger {
    background: #ef4444;
    color: white;
}

.error-message {
    color: #ef4444;
    font-size: 13px;
    margin-top: 10px;
}

/* ==================== NAVBAR ==================== */
.navbar {
    background: var(--card-bg);
    backdrop-filter: blur(40px);
    padding: 18px 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
    border-bottom: 1px solid var(--card-border);
}

.navbar h2 {
    color: var(--text-primary);
    font-size: 22px;
    font-weight: 700;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 15px;
}

#username-display {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 14px;
}

/* ==================== DASHBOARD ==================== */
.dashboard-tabs {
    display: flex;
    gap: 10px;
    margin: 25px 0;
    background: var(--card-bg);
    backdrop-filter: blur(40px);
    padding: 6px;
    border-radius: 25px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--card-border);
}

.dash-tab {
    flex: 1;
    padding: 12px;
    border: none;
    background: transparent;
    border-radius: 20px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s ease;
    color: var(--text-secondary);
}

.dash-tab.active {
    background: var(--tab-active-bg);
    color: var(--text-primary);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.view {
    display: none;
    background: var(--card-bg);
    backdrop-filter: blur(40px);
    border-radius: 30px;
    padding: 30px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
    min-height: 400px;
    border: 1px solid var(--card-border);
}

.view.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

.view-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    padding-bottom: 20px;
    border-bottom: 1.5px solid var(--card-border);
}

.view-header h3 {
    font-size: 20px;
    color: var(--text-primary);
    font-weight: 700;
}

/* ==================== ALARMS LIST ==================== */
.alarms-list {
    display: grid;
    gap: 15px;
}

.alarm-card {
    background: var(--alarm-card-bg);
    backdrop-filter: blur(20px);
    padding: 22px;
    border-radius: 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 1px solid var(--card-border);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.alarm-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.alarm-info h4 {
    font-size: 32px;
    margin-bottom: 6px;
    color: var(--text-primary);
    font-weight: 700;
}

.alarm-info p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.alarm-badge {
    background: rgba(100, 200, 200, 0.2);
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 11px;
    display: inline-block;
    margin-right: 6px;
    color: var(--text-primary);
    font-weight: 600;
}

.alarm-actions-card {
    display: flex;
    gap: 10px;
}

.btn-icon {
    background: rgba(100, 200, 200, 0.2);
    border: 1px solid var(--card-border);
    width: 42px;
    height: 42px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 18px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-icon:hover {
    background: rgba(100, 200, 200, 0.3);
    transform: scale(1.1);
}

/* ==================== FRIENDS LIST ==================== */
.friends-list {
    display: grid;
    gap: 12px;
}

.friend-card {
    background: var(--friend-card-bg);
    backdrop-filter: blur(20px);
    padding: 18px 20px;
    border-radius: 22px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
    border: 1px solid var(--card-border);
}

.friend-card:hover {
    transform: translateX(5px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.friend-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.friend-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #2d3436;
    font-size: 20px;
    font-weight: 700;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: relative;
}

/* Online status indicator */
.friend-avatar::after {
    content: '';
    position: absolute;
    bottom: 2px;
    right: 2px;
    width: 12px;
    height: 12px;
    background: #10b981;
    border-radius: 50%;
    border: 2px solid var(--card-bg);
}

.friend-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}

/* Request Card */
.request-card {
    background: var(--friend-card-bg);
    backdrop-filter: blur(20px);
    padding: 18px 20px;
    border-radius: 22px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    border: 1px solid var(--card-border);
}

.request-actions {
    display: flex;
    gap: 10px;
}

.btn-accept {
    background: #10b981;
    color: white;
    padding: 9px 18px;
    border: none;
    border-radius: 15px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-accept:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

/* ==================== MODALS ==================== */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(8px);
}

.modal.active {
    display: flex;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background: var(--card-bg);
    backdrop-filter: blur(40px);
    border-radius: 30px;
    padding: 35px;
    max-width: 480px;
    width: 90%;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--card-border);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1.5px solid var(--card-border);
}

.modal-header h3 {
    color: var(--text-primary);
    font-size: 20px;
    font-weight: 700;
}

.close {
    font-size: 28px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
}

.close:hover {
    color: var(--text-primary);
    transform: rotate(90deg);
}

/* Search Results */
.search-results {
    margin-top: 20px;
    max-height: 350px;
    overflow-y: auto;
}

.search-result-item {
    background: var(--friend-card-bg);
    backdrop-filter: blur(20px);
    padding: 15px 18px;
    border-radius: 18px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    border: 1px solid var(--card-border);
    transition: all 0.3s ease;
}

.search-result-item:hover {
    transform: translateX(5px);
}

/* ==================== ALARM RINGING MODAL ==================== */
.alarm-modal .modal-content {
    max-width: 500px;
    text-align: center;
    padding: 40px;
}

.alarm-header h2 {
    font-size: 28px;
    margin-bottom: 10px;
    color: var(--text-primary);
    font-weight: 700;
}

.alarm-header p {
    font-size: 52px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.alarm-partner {
    margin-bottom: 25px;
    font-size: 14px;
    color: var(--text-secondary);
}

.agent-message {
    background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
    color: #2d3436;
    padding: 20px;
    border-radius: 20px;
    margin-bottom: 25px;
    font-size: 16px;
    min-height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 500;
}

.agent-message.soft {
    background: linear-gradient(135deg, #84fab0 0%, #8fd3f4 100%);
    color: white;
}

.agent-message.playful {
    background: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%);
}

.agent-message.strict {
    background: linear-gradient(135deg, #ff9a9e 0%, #fad0c4 100%);
    color: white;
}

.alarm-actions {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.alarm-actions .btn {
    flex: 1;
    font-size: 14px;
    padding: 14px;
}

.snooze-info {
    display: flex;
    justify-content: space-around;
    padding-top: 18px;
    border-top: 1.5px solid var(--card-border);
    font-size: 13px;
    color: var(--text-secondary);
}

/* ==================== EMPTY STATES ==================== */
.empty-state {
    text-align: center;
    color: var(--text-secondary);
    padding: 40px 20px;
    font-size: 14px;
}

/* ==================== ANIMATIONS ==================== */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 600px) {
    .container {
        padding: 15px;
    }

    .auth-box {
        padding: 35px 25px;
        margin: 80px 20px;
    }

    .view {
        padding: 25px 20px;
    }

    .alarm-actions {
        flex-direction: column;
    }
}