/*!
 * EasifyMe Time Zone Converter
 * Day/Night immersive backgrounds, SVG clocks, glass morphism, meeting planner
 * Copyright (c) 2025 EasifyMe.com - All rights reserved.
 */

/* ╔══════════════════════════════════════════════════════════╗
   ║  DAY / NIGHT IMMERSIVE BACKGROUND SYSTEM                ║
   ╚══════════════════════════════════════════════════════════╝ */

/* The bg is SCOPED inside the tool-interface-card via negative margins.
   It extends to fill the parent .tool-interface-body padding so the
   sky covers the full card, but never bleeds outside the card itself
   (.tool-interface-card already has overflow:hidden).                  */
.tz-tool {
    position: relative;
    z-index: 0;
    display: flex;
    flex-direction: column;
    gap: 1.75rem;                /* generous gap between major sections */
    padding: 2rem 2rem 2.5rem;
}
@media (max-width: 768px) {
    .tz-tool { padding: 1.25rem; gap: 1.25rem; }
}
@media (max-width: 480px) {
    .tz-tool { padding: 0.85rem; gap: 1rem; }
}
.tz-immersive-bg {
    position: absolute;
    /* extend upward to cover the card header area too (~52px) */
    top: -60px;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
    transition: background 2s ease;
    overflow: hidden;
    pointer-events: none;
}

/* --- Sky gradient phases --- */
.tz-immersive-bg[data-phase="deep-night"]  { background: linear-gradient(180deg, #0F172A 0%, #1E1B4B 100%); }
.tz-immersive-bg[data-phase="dawn"]        { background: linear-gradient(180deg, #1E1B4B 0%, #312E81 40%, #4338CA 100%); }
.tz-immersive-bg[data-phase="sunrise"]     { background: linear-gradient(180deg, #4338CA 0%, #F97316 60%, #FCD34D 100%); }
.tz-immersive-bg[data-phase="morning"]     { background: linear-gradient(180deg, #DBEAFE 0%, #93C5FD 50%, #3B82F6 100%); }
.tz-immersive-bg[data-phase="afternoon"]   { background: linear-gradient(180deg, #3B82F6 0%, #60A5FA 50%, #BFDBFE 100%); }
.tz-immersive-bg[data-phase="golden-hour"] { background: linear-gradient(180deg, #FCD34D 0%, #FB923C 50%, #EA580C 100%); }
.tz-immersive-bg[data-phase="dusk"]        { background: linear-gradient(180deg, #EA580C 0%, #7C3AED 50%, #4338CA 100%); }
.tz-immersive-bg[data-phase="night"]       { background: linear-gradient(180deg, #4338CA 0%, #1E1B4B 50%, #0F172A 100%); }

/* --- Stars layer (CSS box-shadow twinkle) --- */
.tz-stars {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 2s ease;
}
.tz-immersive-bg[data-phase="deep-night"] .tz-stars,
.tz-immersive-bg[data-phase="night"] .tz-stars { opacity: 1; }
.tz-immersive-bg[data-phase="dawn"] .tz-stars  { opacity: 0.4; }
.tz-immersive-bg[data-phase="dusk"] .tz-stars  { opacity: 0.3; }

.tz-stars-layer {
    position: absolute;
    width: 2px;
    height: 2px;
    border-radius: 50%;
    background: transparent;
}
.tz-stars-sm {
    box-shadow:
        50px  30px  0 #fff,  120px 80px  0 #fff,  200px 50px  0 #fff,
        300px 120px 0 #fff,  400px 40px  0 #fff,  500px 100px 0 #fff,
        150px 200px 0 #fff,  350px 180px 0 #fff,  600px 60px  0 #fff,
        700px 150px 0 #fff,  250px 300px 0 #fff,  800px 80px  0 #fff,
        100px 350px 0 #fff,  450px 280px 0 #fff,  550px 220px 0 #fff,
        650px 300px 0 #fff,  750px 250px 0 #fff,  850px 180px 0 #fff,
        950px 100px 0 #fff,  1050px 200px 0 #fff, 1150px 50px  0 #fff,
        180px 400px 0 #fff,  380px 350px 0 #fff,  580px 380px 0 #fff,
        780px 330px 0 #fff,  900px 350px 0 #fff,  1000px 300px 0 #fff,
        1100px 350px 0 #fff, 1200px 100px 0 #fff, 1300px 250px 0 #fff;
    animation: tzTwinkle 4s ease-in-out infinite alternate;
}
.tz-stars-md {
    box-shadow:
        80px  60px  0 1px rgba(255,255,255,0.9),  320px 90px  0 1px rgba(255,255,255,0.8),
        520px 140px 0 1px rgba(255,255,255,0.9),  720px 50px  0 1px rgba(255,255,255,0.7),
        180px 250px 0 1px rgba(255,255,255,0.8),  420px 320px 0 1px rgba(255,255,255,0.9),
        620px 270px 0 1px rgba(255,255,255,0.8),  900px 120px 0 1px rgba(255,255,255,0.9),
        1000px 280px 0 1px rgba(255,255,255,0.7), 1100px 160px 0 1px rgba(255,255,255,0.8),
        250px 380px 0 1px rgba(255,255,255,0.9),  750px 360px 0 1px rgba(255,255,255,0.7);
    animation: tzTwinkle 3s ease-in-out 1s infinite alternate;
}

@keyframes tzTwinkle {
    0%   { opacity: 0.6; }
    50%  { opacity: 1;   }
    100% { opacity: 0.5; }
}

/* --- Moon --- */
.tz-moon {
    position: absolute;
    top: 40px;
    right: 80px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: radial-gradient(circle at 35% 35%, #FEF9C3 0%, #FDE68A 40%, #FCD34D 100%);
    box-shadow: 0 0 30px 10px rgba(253,224,71,0.3), 0 0 60px 20px rgba(253,224,71,0.1);
    opacity: 0;
    transition: opacity 2s ease;
}
.tz-immersive-bg[data-phase="deep-night"] .tz-moon,
.tz-immersive-bg[data-phase="night"] .tz-moon { opacity: 1; }
.tz-immersive-bg[data-phase="dawn"] .tz-moon  { opacity: 0.5; }
.tz-immersive-bg[data-phase="dusk"] .tz-moon  { opacity: 0.4; }

.tz-moon-crater {
    position: absolute;
    border-radius: 50%;
    background: rgba(0,0,0,0.06);
}
.tz-moon-crater:nth-child(1) { width: 12px; height: 12px; top: 14px; left: 20px; }
.tz-moon-crater:nth-child(2) { width: 8px;  height: 8px;  top: 30px; left: 12px; }
.tz-moon-crater:nth-child(3) { width: 10px; height: 10px; top: 36px; left: 32px; }

/* --- Sun --- */
.tz-sun {
    position: absolute;
    top: 30px;
    right: 80px;
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: radial-gradient(circle, #FEF3C7 0%, #FCD34D 40%, #F59E0B 100%);
    box-shadow: 0 0 40px 15px rgba(245,158,11,0.4), 0 0 80px 30px rgba(245,158,11,0.15);
    opacity: 0;
    transition: opacity 2s ease;
}
.tz-immersive-bg[data-phase="morning"] .tz-sun,
.tz-immersive-bg[data-phase="afternoon"] .tz-sun { opacity: 1; }
.tz-immersive-bg[data-phase="sunrise"] .tz-sun    { opacity: 0.8; }
.tz-immersive-bg[data-phase="golden-hour"] .tz-sun { opacity: 0.9; }

.tz-sun-rays {
    position: absolute;
    inset: -20px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(245,158,11,0.15) 0%, transparent 70%);
    animation: tzSunPulse 4s ease-in-out infinite;
}
@keyframes tzSunPulse {
    0%, 100% { transform: scale(1);   opacity: 0.6; }
    50%      { transform: scale(1.1); opacity: 1;   }
}

/* --- Cloud wisps --- */
.tz-clouds {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 2s ease;
    pointer-events: none;
}
.tz-immersive-bg[data-phase="morning"] .tz-clouds,
.tz-immersive-bg[data-phase="afternoon"] .tz-clouds { opacity: 0.5; }
.tz-immersive-bg[data-phase="sunrise"] .tz-clouds    { opacity: 0.3; }
.tz-immersive-bg[data-phase="golden-hour"] .tz-clouds { opacity: 0.4; }

.tz-cloud {
    position: absolute;
    background: rgba(255,255,255,0.3);
    border-radius: 50px;
    animation: tzCloudDrift 30s linear infinite;
}
.tz-cloud-1 { width: 200px; height: 30px; top: 15%; left: -200px; animation-duration: 35s; }
.tz-cloud-2 { width: 150px; height: 22px; top: 25%; left: -150px; animation-duration: 45s; animation-delay: -10s; }
.tz-cloud-3 { width: 180px; height: 26px; top: 40%; left: -180px; animation-duration: 50s; animation-delay: -20s; }
@keyframes tzCloudDrift {
    from { transform: translateX(0); }
    to   { transform: translateX(calc(100vw + 300px)); }
}

/* --- Horizon glow for sunrise/sunset --- */
.tz-horizon {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 40%;
    opacity: 0;
    transition: opacity 2s ease;
    pointer-events: none;
}
.tz-immersive-bg[data-phase="sunrise"] .tz-horizon {
    background: linear-gradient(0deg, rgba(251,146,60,0.4) 0%, transparent 100%);
    opacity: 1;
}
.tz-immersive-bg[data-phase="golden-hour"] .tz-horizon {
    background: linear-gradient(0deg, rgba(234,88,12,0.3) 0%, transparent 100%);
    opacity: 1;
}
.tz-immersive-bg[data-phase="dusk"] .tz-horizon {
    background: linear-gradient(0deg, rgba(124,58,237,0.25) 0%, transparent 100%);
    opacity: 1;
}


/* ╔══════════════════════════════════════════════════════════╗
   ║  GLASS MORPHISM CARDS                                    ║
   ╚══════════════════════════════════════════════════════════╝ */
.tz-glass {
    background: rgba(255,255,255,0.88);
    backdrop-filter: blur(20px) saturate(1.6);
    -webkit-backdrop-filter: blur(20px) saturate(1.6);
    border: 1px solid rgba(255,255,255,0.4);
    box-shadow: 0 4px 30px rgba(0,0,0,0.08);
    position: relative;
    z-index: 1;                  /* sit above the sky */
}
[data-theme="dark"] .tz-glass {
    background: rgba(15,23,42,0.88);
    border-color: rgba(255,255,255,0.1);
    box-shadow: 0 4px 30px rgba(0,0,0,0.35);
}

/* All interactive / text layers inside tz-tool must sit above the sky */
.tz-nav-tabs,
.tz-tab-panel,
.tz-modal-overlay,
.tz-toast {
    position: relative;
    z-index: 1;
}

/* Phase-adaptive text for non-card content sitting on the sky
   (e.g. the tab bar text, step descriptions that aren't in glass cards) */
.tz-tool[data-sky="dark"] .tz-nav-tab { color: #CBD5E1; }
.tz-tool[data-sky="dark"] .tz-nav-tab:hover { color: #F1F5F9; background: rgba(255,255,255,0.1); }
.tz-tool[data-sky="dark"] .tz-nav-tab.active { color: var(--color-accent); background: rgba(255,255,255,0.12); }
.tz-tool[data-sky="dark"] .tz-nav-tabs { background: rgba(15,23,42,0.5); border-color: rgba(255,255,255,0.1); }


/* Override parent card so the immersive sky is the visible bg.
   The .tool-interface-card already has overflow:hidden for clipping. */
.tool-interface-card:has(.tz-tool) {
    position: relative;
    overflow: hidden;
    background: transparent;
    box-shadow: 0 4px 40px rgba(0,0,0,0.25);
    border: 1px solid rgba(255,255,255,0.08);
}
/* Remove body padding — .tz-tool handles its own padding */
.tool-interface-card:has(.tz-tool) > .tool-interface-body {
    padding: 0;
}
/* Style the card header to sit over the sky */
.tool-interface-card:has(.tz-tool) .tool-interface-header {
    position: relative;
    z-index: 2;
    background: rgba(15,23,42,0.55);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom-color: rgba(255,255,255,0.08);
    color: #E2E8F0;
}
.tool-interface-card:has(.tz-tool) .tool-interface-header .tool-interface-title { color: #93C5FD; }
.tool-interface-card:has(.tz-tool) .tool-interface-header i { color: #93C5FD; }

/* Light-sky phase overrides for the card header */
.tz-tool[data-sky="light"] ~ .tool-interface-header,
.tool-interface-card:has(.tz-tool[data-sky="light"]) .tool-interface-header {
    background: rgba(255,255,255,0.55);
    color: var(--color-text);
    border-bottom-color: rgba(0,0,0,0.08);
}
.tool-interface-card:has(.tz-tool[data-sky="light"]) .tool-interface-header .tool-interface-title { color: var(--color-accent); }
.tool-interface-card:has(.tz-tool[data-sky="light"]) .tool-interface-header i { color: var(--color-accent); }

/* ╔══════════════════════════════════════════════════════════╗
   ║  TOOL WRAPPER (layout already in .tz-tool above)         ║
   ╚══════════════════════════════════════════════════════════╝ */

/* ╔══════════════════════════════════════════════════════════╗
   ║  QUICK CONVERTER — Hero Section                          ║
   ╚══════════════════════════════════════════════════════════╝ */
.tz-converter-row {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: var(--space-5);
    align-items: stretch;
}
@media (max-width: 860px) {
    .tz-converter-row {
        grid-template-columns: 1fr;
        gap: var(--space-3);
    }
}

/* --- City Card --- */
.tz-city-card {
    border-radius: var(--radius-xl);
    padding: var(--space-5) var(--space-5) var(--space-4);
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    transition: box-shadow var(--transition-base), border-color var(--transition-base);
}
.tz-city-card:hover {
    box-shadow: 0 8px 32px rgba(0,0,0,0.12);
}

/* City selector */
.tz-city-select-wrap {
    position: relative;
}
.tz-city-input {
    width: 100%;
    padding: 0.7rem 2.5rem 0.7rem 2.5rem;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-bg);
    color: var(--color-text);
    font-size: var(--text-base);
    font-weight: 600;
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.tz-city-input:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(59,130,246,0.15);
}
.tz-city-input-icon {
    position: absolute;
    left: 0.85rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
    font-size: 0.9rem;
    pointer-events: none;
}

/* Clear button */
.tz-city-clear-btn {
    position: absolute;
    right: 0.6rem;
    top: 50%;
    transform: translateY(-50%);
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: none;
    background: var(--color-bg-secondary);
    color: var(--color-text-muted);
    font-size: 0.65rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition-fast), color var(--transition-fast);
    z-index: 2;
}
.tz-city-clear-btn:hover {
    background: var(--color-error-light);
    color: var(--color-error);
}

/* Dropdown */
.tz-city-dropdown {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    right: 0;
    max-height: 320px;
    overflow-y: auto;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    z-index: 100;
    display: none;
}
.tz-city-dropdown.active { display: block; }

/* When dropdown is open, lift the parent card above siblings
   so the dropdown isn't clipped by adjacent z-index:1 elements.
   JS adds .tz-dropdown-open to the card; CSS :has() as backup. */
.tz-city-card.tz-dropdown-open,
.tz-city-card:has(.tz-city-dropdown.active) {
    z-index: 20 !important;
}

.tz-city-dropdown-group {
    padding: 0.4rem 0.8rem;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-text-muted);
    background: var(--color-bg-secondary);
    position: sticky;
    top: 0;
}
.tz-city-option {
    padding: 0.55rem 0.85rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--text-sm);
    color: var(--color-text);
    transition: background var(--transition-fast);
}
.tz-city-option:hover,
.tz-city-option.highlighted {
    background: var(--color-accent-light);
    color: var(--color-accent);
}
.tz-city-option-name { font-weight: 600; }
.tz-city-option-meta { color: var(--color-text-muted); font-size: 0.75rem; }
.tz-city-option-recent::before {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-accent);
    margin-right: 2px;
}

/* --- Clock Area --- */
.tz-clock-area {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-3) 0 var(--space-2);
}
@media (max-width: 480px) {
    .tz-clock-area { flex-direction: column; text-align: center; }
}

/* SVG Analog Clock */
.tz-clock-svg-wrap {
    width: 130px;
    height: 130px;
    flex-shrink: 0;
}
.tz-clock-svg {
    width: 100%;
    height: 100%;
}
.tz-clock-face {
    fill: var(--color-surface);
    stroke: var(--color-border);
    stroke-width: 2;
}
.tz-clock-tick { stroke: var(--color-text-muted); }
.tz-clock-tick-major { stroke: var(--color-text); stroke-width: 2; }
.tz-clock-number {
    fill: var(--color-text);
    font-size: 11px;
    font-weight: 700;
    font-family: var(--font-heading);
    text-anchor: middle;
    dominant-baseline: central;
}
.tz-clock-hand-hour {
    stroke: var(--color-text);
    stroke-width: 3;
    stroke-linecap: round;
}
.tz-clock-hand-minute {
    stroke: var(--color-text-secondary);
    stroke-width: 2;
    stroke-linecap: round;
}
.tz-clock-hand-second {
    stroke: var(--color-accent);
    stroke-width: 1;
    stroke-linecap: round;
}
.tz-clock-center-dot {
    fill: var(--color-accent);
}

/* Digital time display */
.tz-time-info {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    min-width: 0;
}
.tz-digital-time {
    font-family: var(--font-heading);
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 800;
    color: var(--color-text);
    line-height: 1.1;
    letter-spacing: -0.03em;
}
.tz-time-seconds {
    font-size: 0.55em;
    font-weight: 500;
    color: var(--color-accent);
    vertical-align: super;
}
.tz-tz-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    font-weight: 500;
}
.tz-tz-badge {
    display: inline-flex;
    padding: 0.15rem 0.5rem;
    border-radius: var(--radius-full);
    background: var(--color-accent-light);
    color: var(--color-accent);
    font-size: 0.7rem;
    font-weight: 700;
}
.tz-date-display {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    font-weight: 500;
}

/* Call status indicator */
.tz-call-status {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 0.85rem;
    border-radius: var(--radius-full);
    font-size: 0.78rem;
    font-weight: 600;
    margin-top: 0.15rem;
}
.tz-call-business  { background: rgba(16,185,129,0.12);  color: #059669; }
.tz-call-evening   { background: rgba(245,158,11,0.12);  color: #D97706; }
.tz-call-early     { background: rgba(249,115,22,0.12);  color: #EA580C; }
.tz-call-sleeping  { background: rgba(239,68,68,0.12);   color: #DC2626; }
[data-theme="dark"] .tz-call-business  { color: #34D399; }
[data-theme="dark"] .tz-call-evening   { color: #FBBF24; }
[data-theme="dark"] .tz-call-early     { color: #FB923C; }
[data-theme="dark"] .tz-call-sleeping  { color: #F87171; }

/* --- Swap Button --- */
.tz-swap-col {
    display: flex;
    align-items: center;
    justify-content: center;
}
.tz-swap-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 2px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-accent);
    font-size: 1.1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm);
}
.tz-swap-btn:hover {
    background: var(--color-accent);
    color: #fff;
    border-color: var(--color-accent);
    transform: rotate(180deg);
}
@media (max-width: 860px) {
    .tz-swap-col { order: -1; }
    .tz-swap-btn { transform: rotate(90deg); }
    .tz-swap-btn:hover { transform: rotate(270deg); }
}

/* --- Time Difference Bar --- */
.tz-diff-bar {
    border-radius: var(--radius-xl);
    padding: var(--space-5);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}
.tz-diff-main {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-wrap: wrap;
}
.tz-diff-icon {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-lg);
    background: var(--color-accent-light);
    color: var(--color-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    flex-shrink: 0;
}
.tz-diff-text {
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--color-text);
}
.tz-diff-direction {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    font-weight: 400;
}

/* Date crossing alert */
.tz-date-alert {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1rem;
    border-radius: var(--radius-lg);
    background: rgba(245,158,11,0.1);
    border: 1px solid rgba(245,158,11,0.25);
    font-size: var(--text-sm);
    color: var(--color-warning);
    font-weight: 600;
}
[data-theme="dark"] .tz-date-alert { color: #FCD34D; }

/* DST alert */
.tz-dst-alert {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    padding: 0.6rem 1rem;
    border-radius: var(--radius-lg);
    background: rgba(139,92,246,0.08);
    border: 1px solid rgba(139,92,246,0.2);
    font-size: var(--text-sm);
    color: var(--color-accent-purple);
    font-weight: 500;
}

/* --- Call advice section --- */
.tz-call-advice {
    border-radius: var(--radius-xl);
    padding: var(--space-5);
}
.tz-call-advice-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--text-base);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--space-3);
}
.tz-call-advice-row {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.65rem 0;
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
}
.tz-call-advice-row + .tz-call-advice-row {
    border-top: 1px solid var(--color-border);
    margin-top: 0.1rem;
}
.tz-call-best-window {
    margin-top: var(--space-3);
    padding: 0.75rem 1rem;
    border-radius: var(--radius-lg);
    background: rgba(16,185,129,0.08);
    border: 1px solid rgba(16,185,129,0.2);
    font-size: var(--text-sm);
    color: var(--color-success);
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}
[data-theme="dark"] .tz-call-best-window { color: #34D399; }


/* ╔══════════════════════════════════════════════════════════╗
   ║  SECTION HEADERS (reusable)                              ║
   ╚══════════════════════════════════════════════════════════╝ */
.tz-section-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
}
.tz-section-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-text);
}
.tz-section-title i { color: var(--color-accent); }
.tz-section-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}


/* ╔══════════════════════════════════════════════════════════╗
   ║  WORLD CLOCK DASHBOARD — Multi-zone                      ║
   ╚══════════════════════════════════════════════════════════╝ */
.tz-dashboard {
    border-radius: var(--radius-xl);
    padding: var(--space-5);
}

/* Presets row */
.tz-preset-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: var(--space-4);
}
.tz-preset-btn {
    padding: 0.4rem 0.85rem;
    border-radius: var(--radius-full);
    border: 1px solid var(--color-border);
    background: var(--color-bg);
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}
.tz-preset-btn:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    background: var(--color-accent-light);
}
.tz-preset-btn.active {
    background: var(--color-accent);
    color: #fff;
    border-color: var(--color-accent);
}
.tz-preset-btn i { font-size: 0.75rem; }

/* Multi-city grid */
.tz-dash-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--space-3);
}

/* Mini city card */
.tz-mini-card {
    border-radius: var(--radius-lg);
    padding: var(--space-3);
    text-align: center;
    position: relative;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    transition: all var(--transition-fast);
}
.tz-mini-card:hover {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-md);
}
.tz-mini-card-remove {
    position: absolute;
    top: 6px;
    right: 6px;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    border: none;
    background: var(--color-error-light);
    color: var(--color-error);
    font-size: 0.65rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-fast);
}
.tz-mini-card:hover .tz-mini-card-remove { opacity: 1; }

.tz-mini-city-name {
    font-size: var(--text-sm);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 0.3rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.tz-mini-clock-wrap {
    width: 80px;
    height: 80px;
    margin: 0.4rem auto;
}
.tz-mini-digital {
    font-family: var(--font-heading);
    font-size: var(--text-lg);
    font-weight: 800;
    color: var(--color-text);
    letter-spacing: -0.02em;
}
.tz-mini-tz {
    font-size: 0.7rem;
    color: var(--color-text-muted);
    font-weight: 500;
}
.tz-mini-date {
    font-size: 0.7rem;
    color: var(--color-text-subtle);
    margin-top: 0.2rem;
}

/* Add city button in dashboard */
.tz-add-city-btn {
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-3);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.3rem;
    cursor: pointer;
    background: transparent;
    color: var(--color-text-muted);
    font-size: var(--text-sm);
    font-weight: 500;
    min-height: 180px;
    transition: all var(--transition-fast);
}
.tz-add-city-btn:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    background: var(--color-accent-light);
}
.tz-add-city-btn i { font-size: 1.5rem; }


/* ╔══════════════════════════════════════════════════════════╗
   ║  MEETING PLANNER                                         ║
   ╚══════════════════════════════════════════════════════════╝ */
.tz-meeting {
    border-radius: var(--radius-xl);
    padding: var(--space-5);
}

/* Meeting city tags */
.tz-meeting-cities {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: var(--space-4);
}
.tz-meeting-city-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 0.8rem;
    border-radius: var(--radius-full);
    background: var(--color-accent-light);
    color: var(--color-accent);
    font-size: var(--text-sm);
    font-weight: 600;
}
.tz-meeting-city-tag .remove {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: none;
    background: rgba(59,130,246,0.2);
    color: var(--color-accent);
    font-size: 0.6rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.tz-meeting-add-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.4rem 0.8rem;
    border-radius: var(--radius-full);
    border: 1.5px dashed var(--color-border);
    background: transparent;
    color: var(--color-text-muted);
    font-size: var(--text-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}
.tz-meeting-add-btn:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

/* Timeline visual */
.tz-timeline-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: var(--space-2);
    margin-bottom: var(--space-4);
}
.tz-timeline {
    min-width: 700px;
    position: relative;
}

/* Hour header row */
.tz-timeline-hours {
    display: flex;
    border-bottom: 1px solid var(--color-border);
    padding-left: 100px;
    margin-bottom: var(--space-2);
}
.tz-timeline-hour {
    flex: 1;
    text-align: center;
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--color-text-muted);
    padding-bottom: 0.3rem;
}

/* City row */
.tz-timeline-row {
    display: flex;
    align-items: center;
    margin-bottom: 0.5rem;
}
.tz-timeline-label {
    width: 100px;
    flex-shrink: 0;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text);
    padding-right: 0.5rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.tz-timeline-bar-wrap {
    flex: 1;
    display: flex;
    height: 28px;
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--color-bg-secondary);
}
.tz-timeline-segment {
    height: 100%;
    min-width: 0;
    transition: background var(--transition-fast);
}
.tz-seg-sleep   { background: rgba(239,68,68,0.15); }
.tz-seg-early   { background: rgba(249,115,22,0.15); }
.tz-seg-work    { background: rgba(16,185,129,0.25); }
.tz-seg-evening { background: rgba(245,158,11,0.15); }

/* Overlap row */
.tz-timeline-row.tz-overlap-row .tz-timeline-bar-wrap {
    background: var(--color-bg);
    border: 2px solid var(--color-success);
}
.tz-seg-overlap {
    background: rgba(16,185,129,0.35);
}

/* Meeting result */
.tz-meeting-result {
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    background: var(--color-success-light);
    border: 1px solid rgba(16,185,129,0.25);
}
.tz-meeting-result-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: var(--text-base);
    color: var(--color-success);
    margin-bottom: var(--space-2);
}
[data-theme="dark"] .tz-meeting-result-title { color: #34D399; }
.tz-meeting-result-times {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}
.tz-meeting-result-times strong { color: var(--color-text); font-weight: 600; }

.tz-meeting-no-overlap {
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    background: rgba(239,68,68,0.08);
    border: 1px solid rgba(239,68,68,0.2);
    color: var(--color-error);
    font-size: var(--text-sm);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tz-meeting-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: var(--space-3);
    flex-wrap: wrap;
}
.tz-meeting-action-btn {
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    font-weight: 500;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    transition: all var(--transition-fast);
}
.tz-meeting-action-btn:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}


/* ╔══════════════════════════════════════════════════════════╗
   ║  QUICK CALL TIME CHECK                                   ║
   ╚══════════════════════════════════════════════════════════╝ */
.tz-call-check {
    border-radius: var(--radius-xl);
    padding: var(--space-5);
}
.tz-call-check-form {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    align-items: flex-end;
    margin-bottom: var(--space-4);
}
.tz-call-check-field {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    flex: 1;
    min-width: 180px;
}
.tz-call-check-field label {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text-muted);
}
.tz-call-check-field select,
.tz-call-check-field input {
    padding: 0.55rem 0.75rem;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg);
    color: var(--color-text);
    font-size: var(--text-sm);
}

.tz-call-result-big {
    text-align: center;
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-3);
}
.tz-call-result-big.good    { background: rgba(16,185,129,0.08); border: 1px solid rgba(16,185,129,0.2); }
.tz-call-result-big.ok      { background: rgba(245,158,11,0.08); border: 1px solid rgba(245,158,11,0.2); }
.tz-call-result-big.bad     { background: rgba(239,68,68,0.08);  border: 1px solid rgba(239,68,68,0.2);  }
.tz-call-result-big.early   { background: rgba(249,115,22,0.08); border: 1px solid rgba(249,115,22,0.2); }

.tz-call-result-icon { font-size: 2rem; margin-bottom: 0.3rem; }
.tz-call-result-label {
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--color-text);
}
.tz-call-result-sub {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

/* Call windows table */
.tz-call-table-wrap {
    overflow-x: auto;
}
.tz-call-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: var(--text-sm);
}
.tz-call-table th {
    text-align: left;
    padding: 0.6rem 0.75rem;
    font-weight: 700;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--color-text-muted);
    background: var(--color-bg-secondary);
    border-bottom: 1px solid var(--color-border);
}
.tz-call-table th:first-child { border-radius: var(--radius-md) 0 0 0; }
.tz-call-table th:last-child  { border-radius: 0 var(--radius-md) 0 0; }
.tz-call-table td {
    padding: 0.5rem 0.75rem;
    color: var(--color-text-secondary);
    border-bottom: 1px solid var(--color-border);
}
.tz-call-table tbody tr:hover td {
    background: var(--color-accent-light);
}


/* ╔══════════════════════════════════════════════════════════╗
   ║  INDIAN BUSINESS CORRIDOR PRESETS                        ║
   ╚══════════════════════════════════════════════════════════╝ */
.tz-india-presets {
    border-radius: var(--radius-xl);
    padding: var(--space-5);
}
.tz-india-btn-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: var(--space-4);
}
.tz-india-btn {
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    border: 1.5px solid var(--color-border);
    background: var(--color-bg);
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}
.tz-india-btn:hover,
.tz-india-btn.active {
    border-color: #F97316;
    background: rgba(249,115,22,0.08);
    color: #F97316;
}
.tz-india-result {
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    border: 1px solid var(--color-border);
    background: var(--color-bg);
}
.tz-india-result-head {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-weight: 700;
    font-size: var(--text-base);
    color: var(--color-text);
    margin-bottom: var(--space-2);
}
.tz-india-result-body {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
}
.tz-india-result-body strong { color: var(--color-text); }


/* ╔══════════════════════════════════════════════════════════╗
   ║  MY TEAM ZONES — Saved Groups                            ║
   ╚══════════════════════════════════════════════════════════╝ */
.tz-teams {
    border-radius: var(--radius-xl);
    padding: var(--space-5);
}
.tz-teams-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: var(--space-3);
}
.tz-team-card {
    border-radius: var(--radius-lg);
    padding: var(--space-3);
    border: 1px solid var(--color-border);
    background: var(--color-bg);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.tz-team-card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.tz-team-name {
    font-weight: 700;
    font-size: var(--text-sm);
    color: var(--color-text);
    display: flex;
    align-items: center;
    gap: 0.3rem;
}
.tz-team-actions {
    display: flex;
    gap: 0.3rem;
}
.tz-team-actions button {
    width: 24px;
    height: 24px;
    border-radius: var(--radius-sm);
    border: none;
    background: transparent;
    color: var(--color-text-muted);
    font-size: 0.7rem;
    cursor: pointer;
}
.tz-team-actions button:hover { color: var(--color-accent); }
.tz-team-cities-list {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    line-height: 1.5;
}
.tz-team-load-btn {
    padding: 0.4rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-accent);
    background: var(--color-accent-light);
    color: var(--color-accent);
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    transition: all var(--transition-fast);
}
.tz-team-load-btn:hover {
    background: var(--color-accent);
    color: #fff;
}

.tz-save-team-btn {
    padding: 0.5rem 1.2rem;
    border-radius: var(--radius-md);
    border: 1.5px dashed var(--color-border);
    background: transparent;
    color: var(--color-text-muted);
    font-size: var(--text-sm);
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    transition: all var(--transition-fast);
}
.tz-save-team-btn:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}


/* ╔══════════════════════════════════════════════════════════╗
   ║  24-HOUR CONVERSION TABLE                                ║
   ╚══════════════════════════════════════════════════════════╝ */
.tz-conv-table-section {
    border-radius: var(--radius-xl);
    padding: var(--space-5);
}
.tz-conv-table-wrap {
    overflow-x: auto;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}
.tz-conv-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--text-sm);
}
.tz-conv-table thead { background: var(--color-bg-secondary); }
.tz-conv-table th {
    padding: 0.6rem 0.85rem;
    text-align: left;
    font-weight: 700;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--color-text-muted);
    border-bottom: 1px solid var(--color-border);
}
.tz-conv-table td {
    padding: 0.5rem 0.85rem;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text-secondary);
}
.tz-conv-table tbody tr:hover td {
    background: var(--color-accent-light);
}
.tz-conv-table .tz-row-highlight td {
    background: rgba(16,185,129,0.06);
    font-weight: 600;
}
.tz-conv-table-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: var(--space-3);
}


/* ╔══════════════════════════════════════════════════════════╗
   ║  NAV TABS for feature switching                          ║
   ╚══════════════════════════════════════════════════════════╝ */
.tz-nav-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    padding: 0.3rem;
    border-radius: var(--radius-lg);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    margin-bottom: var(--space-4);
}
.tz-nav-tab {
    padding: 0.55rem 1rem;
    border-radius: var(--radius-md);
    border: none;
    background: transparent;
    color: var(--color-text-muted);
    font-size: var(--text-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    white-space: nowrap;
}
.tz-nav-tab:hover { color: var(--color-text); background: var(--color-surface); }
.tz-nav-tab.active {
    background: var(--color-surface);
    color: var(--color-accent);
    box-shadow: var(--shadow-sm);
}
.tz-nav-tab i { font-size: 0.8rem; }

.tz-tab-panel { display: none; }
.tz-tab-panel.active {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;                 /* space between sections WITHIN a tab */
}
@media (max-width: 480px) {
    .tz-tab-panel.active { gap: 1rem; }
}


/* ╔══════════════════════════════════════════════════════════╗
   ║  TOAST                                                    ║
   ╚══════════════════════════════════════════════════════════╝ */
.tz-toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    padding: 0.65rem 1.25rem;
    border-radius: var(--radius-full);
    background: var(--color-text);
    color: var(--color-bg);
    font-size: var(--text-sm);
    font-weight: 600;
    box-shadow: var(--shadow-lg);
    z-index: 9999;
    opacity: 0;
    transition: all 0.3s ease;
    pointer-events: none;
}
.tz-toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}


/* ╔══════════════════════════════════════════════════════════╗
   ║  MODAL (for adding cities)                                ║
   ╚══════════════════════════════════════════════════════════╝ */
.tz-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
}
.tz-modal-overlay.active { display: flex; }
.tz-modal {
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    padding: var(--space-5);
    max-width: 420px;
    width: 100%;
    box-shadow: var(--shadow-lg);
}
.tz-modal-title {
    font-weight: 700;
    font-size: var(--text-lg);
    color: var(--color-text);
    margin-bottom: var(--space-3);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.tz-modal-close {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    border: none;
    background: var(--color-bg-secondary);
    color: var(--color-text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}
.tz-modal-close:hover { color: var(--color-error); }


/* ╔══════════════════════════════════════════════════════════╗
   ║  RESPONSIVE                                               ║
   ╚══════════════════════════════════════════════════════════╝ */
@media (max-width: 768px) {
    .tz-clock-svg-wrap { width: 100px; height: 100px; }
    .tz-mini-clock-wrap { width: 65px; height: 65px; }
    .tz-digital-time { font-size: 1.6rem; }
    .tz-timeline { min-width: 550px; }
    .tz-timeline-label { width: 75px; font-size: 0.75rem; }
    .tz-nav-tab { padding: 0.45rem 0.65rem; font-size: 0.78rem; }
    .tz-moon { width: 40px; height: 40px; top: 20px; right: 40px; }
    .tz-sun  { width: 50px; height: 50px; top: 20px; right: 40px; }
}

@media (max-width: 480px) {
    .tz-converter-row { gap: var(--space-2); }
    .tz-city-card { padding: var(--space-3); }
    .tz-clock-svg-wrap { width: 80px; height: 80px; }
    .tz-digital-time { font-size: 1.4rem; }
    .tz-dash-grid { grid-template-columns: repeat(2, 1fr); }
    .tz-mini-clock-wrap { width: 55px; height: 55px; }
    .tz-preset-row { gap: 0.35rem; }
    .tz-preset-btn { font-size: 0.75rem; padding: 0.3rem 0.6rem; }
    .tz-india-btn { font-size: 0.75rem; padding: 0.35rem 0.7rem; }
    .tz-teams-grid { grid-template-columns: 1fr; }
    .tz-stars-sm, .tz-stars-md { display: none; }
}