/* SipNava v9.0 - Minimal Technological Telecom & VoIP Stylesheet */
/* Soft Medium-Navy Dark Theme & Vibrant Multi-Pastel Light Theme */

:root {
    --bg-main: #EEF4FB;
    --bg-main-gradient:
        radial-gradient(circle at 10% 15%, rgba(147, 213, 255, 0.65) 0%, transparent 42%),
        radial-gradient(circle at 88% 18%, rgba(255, 190, 178, 0.55) 0%, transparent 42%),
        radial-gradient(circle at 82% 82%, rgba(190, 200, 255, 0.60) 0%, transparent 45%),
        radial-gradient(circle at 18% 85%, rgba(153, 238, 204, 0.55) 0%, transparent 45%),
        radial-gradient(circle at 52% 48%, rgba(255, 212, 168, 0.45) 0%, transparent 50%),
        #EEF4FB;
    --bg-surface: rgba(255, 255, 255, 0.82);
    --bg-elevated: rgba(232, 242, 254, 0.90);
    --bg-sidebar: rgba(242, 247, 255, 0.92);
    --text-primary: #0A2246;
    --text-secondary: #23406E;
    --text-muted: #526E9C;
    --border-color: rgba(148, 184, 230, 0.55);
    --accent-blue: #0077E6;
    --accent-cyan: #00B4D8;
    --accent-orange: #F97316;
    --card-shadow: 0 10px 28px -6px rgba(10, 34, 70, 0.07);
    --hero-bg: linear-gradient(135deg, rgba(219, 238, 255, 0.92) 0%, rgba(232, 229, 255, 0.90) 35%, rgba(255, 232, 226, 0.90) 70%, rgba(218, 248, 235, 0.92) 100%);
    --hero-border: rgba(96, 165, 250, 0.45);
}

html.dark {
    /* Soft Medium-Navy Blue (Not black, not dark charcoal) */
    --bg-main: #07101e;
    --bg-main-gradient:
        radial-gradient(circle at 14% 18%, rgba(0, 212, 255, 0.22) 0%, transparent 45%),
        radial-gradient(circle at 86% 20%, rgba(56, 130, 246, 0.24) 0%, transparent 48%),
        radial-gradient(circle at 50% 85%, rgba(0, 180, 216, 0.18) 0%, transparent 52%),
        linear-gradient(160deg, #102444 0%, #163059 52%, #12284A 100%);
    --bg-surface: rgba(26, 54, 99, 0.82);
    --bg-elevated: rgba(34, 68, 122, 0.88);
    --bg-sidebar: rgba(17, 38, 72, 0.92);
    --text-primary: #F4F9FF;
    --text-secondary: #CFE2FA;
    --text-muted: #7b9ecb;
    --border-color: rgba(56, 189, 248, 0.28);
    --accent-blue: #38BDF8;
    --accent-cyan: #00F0DF;
    --accent-orange: #FB923C;
    --card-shadow: 0 14px 34px -8px rgba(5, 15, 34, 0.40);
    --hero-bg: linear-gradient(135deg, #0E2346 0%, #173668 50%, #112A54 100%);
    --hero-border: rgba(0, 225, 255, 0.35);
}

* {
    box-sizing: border-box;
}

body {
    background-color: var(--bg-main);
    background-image: var(--bg-main-gradient);
    background-attachment: fixed;
    color: var(--text-primary);
    font-family: 'Vazirmatn', sans-serif;
    line-height: 1.7;
    transition: background-color 0.25s ease, color 0.25s ease;
    margin: 0;
    overflow-x: hidden;
}

/* BiDi isolation for technical terms */
bdi, .ltr-token {
    direction: ltr;
    unicode-bidi: isolate;
    display: inline-block;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85em;
    padding: 0.05rem 0.4rem;
    border-radius: 0.4rem;
    background-color: var(--bg-elevated);
    border: 1px solid var(--border-color);
    color: var(--accent-blue);
    vertical-align: baseline;
}

html.dark bdi, html.dark .ltr-token {
    color: #7DD3FC;
}

.ltr-raw {
    direction: ltr;
    unicode-bidi: isolate;
    display: inline-block;
    font-family: 'JetBrains Mono', monospace;
}

/* Surfaces & 5-Tone Pastel Card Cycling in Light Mode (Blue, Indigo, Peach/Coral, Mint Green, Orange) */
.theme-surface {
    background-color: var(--bg-surface);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    box-shadow: var(--card-shadow);
    transition: background-color 0.25s ease, border-color 0.25s ease, transform 0.2s ease;
}

/* 1. Pastel Sky Blue (آبی پاستلی) */
html:not(.dark) main > section:nth-of-type(5n+1).theme-surface,
html:not(.dark) .grid > .theme-surface:nth-child(5n+1) {
    background: linear-gradient(145deg, rgba(224, 242, 254, 0.90), rgba(240, 249, 255, 0.92));
    border-color: #93C5FD;
}

/* 2. Pastel Indigo (نیلی پاستلی) */
html:not(.dark) main > section:nth-of-type(5n+2).theme-surface,
html:not(.dark) .grid > .theme-surface:nth-child(5n+2) {
    background: linear-gradient(145deg, rgba(224, 231, 255, 0.90), rgba(238, 242, 255, 0.92));
    border-color: #A5B4FC;
}

/* 3. Pastel Peach / Coral (گلبهی پاستلی) */
html:not(.dark) main > section:nth-of-type(5n+3).theme-surface,
html:not(.dark) .grid > .theme-surface:nth-child(5n+3) {
    background: linear-gradient(145deg, rgba(255, 228, 225, 0.90), rgba(255, 241, 240, 0.92));
    border-color: #FDA4AF;
}

/* 4. Pastel Mint Green (سبز پاستلی) */
html:not(.dark) main > section:nth-of-type(5n+4).theme-surface,
html:not(.dark) .grid > .theme-surface:nth-child(5n+4) {
    background: linear-gradient(145deg, rgba(209, 250, 229, 0.90), rgba(236, 253, 245, 0.92));
    border-color: #6EE7B7;
}

/* 5. Pastel Soft Orange / Apricot (نارنجی پاستلی) */
html:not(.dark) main > section:nth-of-type(5n+5).theme-surface,
html:not(.dark) .grid > .theme-surface:nth-child(5n+5) {
    background: linear-gradient(145deg, rgba(255, 237, 213, 0.90), rgba(255, 247, 237, 0.92));
    border-color: #FDBA74;
}

.theme-sidebar {
    background-color: var(--bg-sidebar);
    backdrop-filter: blur(14px);
    border-color: var(--border-color);
    transition: background-color 0.25s ease, border-color 0.25s ease;
}

.theme-elevated {
    background-color: var(--bg-elevated);
    border: 1px solid var(--border-color);
}

.theme-text-main { color: var(--text-primary); }
.theme-text-sub { color: var(--text-secondary); }
.theme-text-muted { color: var(--text-muted); }
.theme-border { border-color: var(--border-color); }

.theme-input {
    background-color: var(--bg-elevated);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    transition: border-color 0.15s ease, background-color 0.15s ease;
}

.theme-input:focus {
    outline: none;
    border-color: var(--accent-blue);
}

/* Brand Two-Tone Typography (Sip + Nava) */
.brand-sip {
    color: #07255B;
    font-weight: 800;
}
html.dark .brand-sip {
    color: #FFFFFF;
}
.brand-nava {
    background: linear-gradient(90deg, #0095FF, #00F0DF);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 800;
}

/* Sidebar Navigation */
.cf-nav-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 0.65rem 0.85rem;
    border-radius: 0.75rem;
    font-size: 0.84rem;
    font-weight: 600;
    color: var(--text-secondary);
    transition: all 0.15s ease;
    cursor: pointer;
    text-decoration: none;
}

.cf-nav-item:hover {
    background-color: var(--bg-elevated);
    color: var(--accent-blue);
}

.cf-nav-item.active {
    background-color: rgba(0, 119, 230, 0.14);
    color: var(--accent-blue);
    font-weight: 800;
    border-right: 3px solid var(--accent-blue);
}

html.dark .cf-nav-item.active {
    background-color: rgba(56, 189, 248, 0.20);
    color: #38BDF8;
}

.cf-submenu {
    margin-right: 1.1rem;
    padding-right: 0.75rem;
    border-right: 1px dashed var(--border-color);
    margin-top: 0.25rem;
    margin-bottom: 0.35rem;
}

.cf-sub-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.45rem 0.65rem;
    border-radius: 0.5rem;
    font-size: 0.78rem;
    color: var(--text-muted);
    transition: all 0.15s ease;
    text-decoration: none;
}

.cf-sub-link:hover {
    color: var(--accent-orange);
    background-color: var(--bg-elevated);
}

.plus-badge {
    width: 22px;
    height: 22px;
    border-radius: 6px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: 'JetBrains Mono', monospace;
    font-weight: 700;
    font-size: 0.85rem;
    background-color: var(--bg-elevated);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    transition: all 0.15s ease;
}

/* SipNava Minimal Technological Hero Banner */
.sipnava-hero-box {
    background: var(--hero-bg);
    border: 1px solid var(--hero-border);
    box-shadow: var(--card-shadow);
    position: relative;
    overflow: hidden;
    border-radius: 1.5rem;
}

.parallax-layer {
    transition: transform 0.15s cubic-bezier(0.2, 0.8, 0.2, 1);
    will-change: transform;
    pointer-events: none;
}

.hero-slide {
    display: none;
    animation: heroFadeIn 0.45s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-slide.active {
    display: grid;
}

@keyframes heroFadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Balanced, non-overflowing Hero Typography */
.hero-slide-title {
    font-size: clamp(1.18rem, 2.0vw, 1.65rem);
    line-height: 1.6;
    font-weight: 800;
    margin: 0;
    word-break: break-word;
}

.hero-slide-desc {
    font-size: clamp(0.8rem, 1.02vw, 0.92rem);
    line-height: 1.85;
    margin: 0;
}

.hero-tab-btn {
    position: relative;
    overflow: hidden;
    transition: all 0.2s ease;
    border: 1px solid var(--border-color);
    background-color: var(--bg-surface);
    color: var(--text-secondary);
}

.hero-tab-btn:hover {
    border-color: var(--accent-blue);
    color: var(--text-primary);
    transform: translateY(-1px);
}

.hero-tab-btn.active {
    border-color: var(--accent-blue);
    background-color: rgba(0, 149, 255, 0.15);
    color: var(--text-primary);
}

html.dark .hero-tab-btn.active {
    background-color: rgba(0, 240, 223, 0.14);
    border-color: #00F0DF;
}

/* 5-Second Progress Bar for Hero Slider */
.hero-tab-progress {
    position: absolute;
    bottom: 0;
    right: 0;
    height: 3px;
    width: 0%;
    background: linear-gradient(90deg, #00F0DF, #0095FF);
}

.hero-tab-btn.active .hero-tab-progress {
    animation: heroProgressFill 5s linear forwards;
}

@keyframes heroProgressFill {
    from { width: 0%; }
    to { width: 100%; }
}

@keyframes pulseWave {
    0%, 100% { opacity: 0.35; }
    50% { opacity: 1; }
}

.wave-playing {
    animation: pulseWave 0.85s infinite ease-in-out;
    color: var(--accent-orange) !important;
}

@keyframes eqBounce {
    0%, 100% { height: 22%; }
    50% { height: 90%; }
}

.eq-bar {
    width: 7px;
    border-radius: 9999px;
    background: linear-gradient(to top, #0256D2, #00F0DF);
    animation: eqBounce 1.2s infinite ease-in-out;
}

@keyframes packetMove {
    0% { transform: translateX(0); opacity: 0.2; }
    50% { opacity: 1; }
    100% { transform: translateX(-95px); opacity: 0.2; }
}

.packet-dot {
    animation: packetMove 2.2s infinite linear;
}

/* Floating Contact Speed-Dial Widget */
.floating-widget-btn {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 25px rgba(0, 119, 230, 0.38);
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: none;
}

.floating-widget-btn:hover {
    transform: scale(1.08);
}

.speed-dial-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    border-radius: 0.75rem;
    font-size: 0.8rem;
    font-weight: 700;
    text-decoration: none;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.18);
    transition: all 0.15s ease;
}

.speed-dial-item:hover {
    transform: translateY(-2px);
}