/* =========================================================
   ÜLKÜ-AI COGNITIVE CORE V2.3 | INTELLIGENT VIEWPORT
   
   🔧 V2.3: SMART POSITIONING (pencere artık taşmıyor!)
   🔧 V2.2: Free-text chat input bar
   🔧 V2.1: Dış süslemeler temizlendi
   ✨ V2: ÜlküTech ana sayfa ile uyumlu premium tasarım
   ========================================================= */

:root {
    --u-bg: #02060d;
    --u-panel-base: rgba(10, 15, 25, 0.4);
    --u-panel-deep: rgba(3, 5, 10, 0.95);
    --u-border: rgba(255, 255, 255, 0.06);
    --u-border-strong: rgba(255, 255, 255, 0.12);
    
    --u-gold: #d4af37;
    --u-gold-soft: rgba(212, 175, 55, 0.08);
    --u-gold-glow: rgba(212, 175, 55, 0.4);
    
    --u-cyan: #00f0ff;
    --u-cyan-soft: rgba(0, 240, 255, 0.06);
    
    --u-accent: #22c55e;
    --u-red: #ff3333;
    
    --u-text: #cbd5e1;
    --u-text-bright: #ffffff;
    --u-text-muted: #94a3b8;
    --u-text-dim: rgba(255, 255, 255, 0.2);
    
    --u-ease: cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* =========================================================
   ✨ WRAPPER + TETİKLEYİCİ (Trigger)
   ========================================================= */
#ulku-ai-wrapper {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 999999;
    font-family: 'Inter', sans-serif;
}

#ulku-ai-trigger {
    width: 85px;
    height: 85px;
    border-radius: 50%;
    background: 
        radial-gradient(circle at 30% 30%, rgba(212, 175, 55, 0.15) 0%, transparent 60%),
        var(--u-bg);
    border: 1px solid var(--u-gold);
    box-shadow:
        0 0 0 1px rgba(212, 175, 55, 0.15),
        0 0 20px var(--u-gold-glow),
        0 10px 30px rgba(0, 0, 0, 0.6),
        inset 0 0 30px rgba(212, 175, 55, 0.05);
    cursor: pointer;
    overflow: hidden;
    transition: all 0.4s var(--u-ease);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

#ulku-ai-trigger:hover {
    transform: scale(1.06) translateY(-4px);
    box-shadow:
        0 0 0 2px rgba(212, 175, 55, 0.3),
        0 0 40px rgba(212, 175, 55, 0.6),
        0 15px 40px rgba(0, 0, 0, 0.7);
    border-color: #fff;
}

#ulku-ai-trigger img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    pointer-events: none;
    border-radius: 50%;
    transform: scale(1.18);
    transition: transform 0.4s var(--u-ease);
    filter: drop-shadow(0 0 8px rgba(212, 175, 55, 0.4));
}

#ulku-ai-trigger:hover img {
    transform: scale(1.22) rotate(-3deg);
}

/* =========================================================
   ✨ ANA TERMİNAL PENCERESİ — V2.3 SMART POSITIONING
   ========================================================= */
#ulku-ai-window {
    position: fixed;                          /* 🔧 V2.3: absolute → fixed (viewport'a göre) */
    bottom: 130px;                            /* trigger'ın 30+85+15 px üstünde */
    right: 30px;                              /* trigger ile aynı sağ hizada */
    width: 400px;
    max-width: calc(100vw - 40px);            /* 🔧 V2.3: viewport'tan dışarı taşmaz */
    height: 600px;
    max-height: calc(100vh - 160px);          /* 🔧 V2.3: ekran yüksekliğini geçmez */
    background:
        linear-gradient(145deg, rgba(10, 15, 25, 0.85) 0%, rgba(3, 5, 10, 0.95) 100%);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1px solid var(--u-border);
    border-top: 1px solid var(--u-border-strong);
    border-radius: 6px;
    box-shadow:
        0 30px 80px rgba(0, 0, 0, 0.9),
        0 0 0 1px rgba(212, 175, 55, 0.05);
    display: none;
    flex-direction: column;
    overflow: hidden;
    transform-origin: bottom right;
    animation: ulkuPop 0.4s var(--u-ease) forwards;
    box-sizing: border-box;
}

@keyframes ulkuPop {
    0% { opacity: 0; transform: scale(0.92) translateY(20px); }
    100% { opacity: 1; transform: scale(1) translateY(0); }
}

/* =========================================================
   ✨ HEADER
   ========================================================= */
#ulku-ai-header {
    background: linear-gradient(180deg, rgba(5, 8, 15, 0.95) 0%, rgba(2, 4, 8, 0.95) 100%);
    padding: 16px 22px;
    border-bottom: 1px solid var(--u-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;                           /* 🔧 V2.3: header daralmaz */
}

#ulku-ai-header .title {
    color: var(--u-gold);
    font-family: 'Rajdhani', 'Inter', sans-serif;
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 10px;
    line-height: 1;
    flex: 1 1 auto;                           /* 🔧 V2.3: başlık esner */
    min-width: 0;                             /* 🔧 V2.3: overflow için gerekli */
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

#ulku-ai-header .title::before {
    content: '';
    display: block;
    width: 8px;
    height: 8px;
    background: var(--u-accent);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--u-accent);
    animation: uOnlinePulse 2s infinite ease-in-out;
    flex-shrink: 0;                           /* 🔧 V2.3: yeşil nokta daralmaz */
}

@keyframes uOnlinePulse {
    0%, 100% { box-shadow: 0 0 4px var(--u-accent); transform: scale(1); }
    50% { box-shadow: 0 0 14px var(--u-accent); transform: scale(1.25); }
}

#ulku-ai-close {
    color: #ffffff;                              /* 🆕 Beyaz — net görünür */
    cursor: pointer;
    font-size: 1.1rem;                           /* 🆕 Biraz büyüt */
    font-weight: bold;
    transition: all 0.3s var(--u-ease);
    display: flex !important;                    /* 🆕 Garantili göster */
    align-items: center;
    justify-content: center;
    width: 36px;                                 /* 🆕 32 → 36 büyütüldü */
    height: 36px;
    min-width: 36px;
    flex-shrink: 0;
    border: 1.5px solid var(--u-gold);           /* 🆕 ALTIN border — dikkat çeker */
    border-radius: 50%;                          /* 🆕 Yuvarlak — modern */
    background: rgba(212, 175, 55, 0.15);        /* 🆕 Altın tonu arka plan */
    user-select: none;
    line-height: 1;
    box-shadow: 0 0 8px rgba(212, 175, 55, 0.3); /* 🆕 Altın hafif parıltı */
    position: relative;
    z-index: 100;                                /* 🆕 Her şeyin üstünde */
    margin-left: 8px;
}

#ulku-ai-close:hover {
    color: #ffffff;
    background: rgba(255, 51, 51, 0.35);         /* 🆕 Hover'da kırmızı */
    border-color: var(--u-red);
    transform: rotate(90deg) scale(1.1);
    box-shadow: 0 0 16px rgba(255, 51, 51, 0.6);
}

/* =========================================================
   ✨ MESAJ ALANI (GÖVDE)
   ========================================================= */
#ulku-ai-body {
    flex: 1 1 auto;                           /* 🔧 V2.3: kalan alanı doldur */
    min-height: 0;                            /* 🔧 V2.3: scroll için gerekli */
    padding: 24px 22px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 14px;
    scrollbar-width: thin;
    scrollbar-color: var(--u-gold) transparent;
    
    background-image:
        linear-gradient(rgba(212, 175, 55, 0.015) 1px, transparent 1px),
        linear-gradient(90deg, rgba(212, 175, 55, 0.015) 1px, transparent 1px);
    background-size: 30px 30px;
}

#ulku-ai-body::-webkit-scrollbar { width: 3px; }
#ulku-ai-body::-webkit-scrollbar-track { background: transparent; }
#ulku-ai-body::-webkit-scrollbar-thumb {
    background: var(--u-gold);
    border-radius: 0;
    opacity: 0.4;
}
#ulku-ai-body::-webkit-scrollbar-thumb:hover { background: #f0c040; }

/* MESAJ BALONLARI */
.u-msg {
    max-width: 88%;
    line-height: 1.65;
    font-size: 0.9rem;
    padding: 13px 16px 11px;
    border-radius: 4px;
    white-space: pre-wrap;
    font-weight: 400;
    animation: msgIn 0.35s var(--u-ease);
    position: relative;
    font-family: 'Inter', sans-serif;
    word-wrap: break-word;                    /* 🔧 V2.3: uzun kelime taşmaz */
    overflow-wrap: break-word;
}

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

.u-msg.bot {
    background: 
        linear-gradient(135deg, rgba(212, 175, 55, 0.04) 0%, rgba(255, 255, 255, 0.02) 100%);
    color: var(--u-text);
    border-left: 2px solid var(--u-gold);
    border-top: 1px solid rgba(212, 175, 55, 0.15);
    align-self: flex-start;
    box-shadow:
        0 4px 12px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.u-msg.bot::before {
    content: '';
    position: absolute;
    top: 0;
    left: -2px;
    width: 2px;
    height: 16px;
    background: var(--u-gold);
    box-shadow: 0 0 8px var(--u-gold);
}

.u-msg.user {
    background: 
        linear-gradient(135deg, rgba(0, 240, 255, 0.04) 0%, rgba(212, 175, 55, 0.06) 100%);
    color: var(--u-text-bright);
    border-right: 2px solid var(--u-gold);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    align-self: flex-end;
    text-align: right;
    box-shadow:
        0 4px 12px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.u-msg.bot:last-child::after {
    content: '_';
    color: var(--u-gold);
    font-weight: 700;
    margin-left: 2px;
    animation: ulkuCaret 0.8s infinite step-end;
}

@keyframes ulkuCaret {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.u-msg.bot:not(:last-child)::after { content: none; }

/* =========================================================
   ✨ SEÇENEK BUTONLARI (CHIPS)
   ========================================================= */
#ulku-ai-options {
    padding: 14px 18px;
    background: rgba(5, 8, 15, 0.6);
    border-top: 1px solid var(--u-border);
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-height: 280px;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--u-gold) transparent;
    flex-shrink: 0;                           /* 🔧 V2.3: options daralmaz */
}

#ulku-ai-options::-webkit-scrollbar { width: 3px; }
#ulku-ai-options::-webkit-scrollbar-thumb {
    background: var(--u-gold);
    opacity: 0.3;
}

.u-option-btn {
    background: rgba(255, 255, 255, 0.02);
    color: var(--u-text);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-left: 2px solid transparent;
    padding: 11px 16px 10px 14px;
    border-radius: 3px;
    cursor: pointer;
    font-family: 'Rajdhani', 'Inter', sans-serif;
    font-size: 0.8rem;
    letter-spacing: 1px;
    text-align: left;
    transition: all 0.35s var(--u-ease);
    font-weight: 600;
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    flex-shrink: 0;
}

.u-option-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(212, 175, 55, 0.08), rgba(212, 175, 55, 0.02));
    transform: translateX(-100%);
    transition: transform 0.4s var(--u-ease);
    z-index: -1;
    pointer-events: none;
}

.u-option-btn::after {
    content: '›';
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%) translateX(-6px);
    opacity: 0;
    color: var(--u-gold);
    font-size: 1.2rem;
    font-weight: 700;
    transition: all 0.35s var(--u-ease);
    line-height: 1;
}

.u-option-btn:hover {
    background: rgba(212, 175, 55, 0.04);
    border-color: rgba(212, 175, 55, 0.4);
    border-left-color: var(--u-gold);
    color: var(--u-text-bright);
    padding-left: 18px;
    padding-right: 32px;
    letter-spacing: 1.5px;
}

.u-option-btn:hover::before { transform: translateX(0); }
.u-option-btn:hover::after {
    opacity: 1;
    transform: translateY(-50%) translateX(0);
}

.u-option-btn:active { transform: scale(0.98); }

/* =========================================================
   ✨ V2.2: FREE-TEXT CHAT INPUT BAR
   ========================================================= */
#ulku-ai-input-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px 12px;
    background: linear-gradient(180deg, rgba(2, 4, 8, 0.85) 0%, rgba(2, 4, 8, 0.98) 100%);
    border-top: 1px solid var(--u-border);
    flex-shrink: 0;                           /* 🔧 V2.3: input bar daralmaz */
}

#ulku-ai-input {
    flex: 1 1 auto;                           /* 🔧 V2.3: ortayı doldur */
    min-width: 0;                             /* 🔧 V2.3: overflow için */
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--u-text-bright);
    font-family: 'Inter', sans-serif;
    font-size: 0.85rem;
    padding: 10px 14px;
    border-radius: 3px;
    outline: none;
    transition: all 0.3s var(--u-ease);
    letter-spacing: 0.3px;
}

#ulku-ai-input::placeholder {
    color: var(--u-text-muted);
    font-style: italic;
    letter-spacing: 0.5px;
    font-size: 0.8rem;
}

#ulku-ai-input:focus {
    border-color: rgba(212, 175, 55, 0.5);
    background: rgba(212, 175, 55, 0.03);
    box-shadow:
        0 0 0 1px rgba(212, 175, 55, 0.2),
        0 0 10px rgba(212, 175, 55, 0.1);
}

#ulku-ai-input:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

#ulku-ai-send {
    width: 36px;
    height: 36px;
    background: rgba(212, 175, 55, 0.08);
    border: 1px solid rgba(212, 175, 55, 0.3);
    color: var(--u-gold);
    font-size: 1.3rem;
    font-weight: 700;
    cursor: pointer;
    border-radius: 3px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s var(--u-ease);
    line-height: 1;
    padding: 0 0 2px 0;
    font-family: 'Rajdhani', sans-serif;
    flex-shrink: 0;                           /* 🔧 V2.3: send butonu daralmaz */
}

#ulku-ai-send:hover:not(:disabled) {
    background: var(--u-gold);
    color: var(--u-bg);
    border-color: var(--u-gold);
    box-shadow: 0 0 12px rgba(212, 175, 55, 0.5);
    transform: translateX(2px);
}

#ulku-ai-send:active:not(:disabled) {
    transform: scale(0.95);
}

#ulku-ai-send:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* =========================================================
   ✨ TABLET DUYARLILIK — 🆕 V2.3
   ========================================================= */
@media (max-width: 768px) and (min-width: 481px) {
    #ulku-ai-window {
        width: calc(100vw - 60px);
        right: 30px;
        max-width: 400px;
    }
}

/* =========================================================
   ✨ MOBİL DUYARLILIK
   ========================================================= */
@media (max-width: 480px) {
    #ulku-ai-wrapper {
        bottom: 20px;
        right: 20px;
    }
    
    #ulku-ai-trigger {
        width: 70px;
        height: 70px;
    }
    
    #ulku-ai-window {
        width: calc(100vw - 20px);
        height: calc(100vh - 110px);
        max-height: calc(100vh - 110px);
        bottom: 100px;
        right: 10px;
        max-width: none;
    }
    
    #ulku-ai-header { padding: 14px 18px; }
    #ulku-ai-header .title { font-size: 0.95rem; letter-spacing: 2px; }
    #ulku-ai-body { padding: 18px 16px; }
    .u-msg { font-size: 0.85rem; padding: 11px 14px 10px; }
    #ulku-ai-options { padding: 12px 14px; max-height: 220px; }
    .u-option-btn { padding: 10px 14px 9px; font-size: 0.75rem; }
    
    #ulku-ai-input-bar { padding: 8px 12px 10px; }
    #ulku-ai-input { font-size: 0.85rem; padding: 9px 12px; }
    #ulku-ai-send { width: 34px; height: 34px; font-size: 1.2rem; }
}

/* =========================================================
   ✨ PRINT / ACCESSIBILITY
   ========================================================= */
@media print {
    #ulku-ai-wrapper { display: none !important; }
}

@media (prefers-reduced-motion: reduce) {
    .u-msg,
    #ulku-ai-window,
    #ulku-ai-header .title::before {
        animation: none !important;
    }
    
    #ulku-ai-trigger,
    #ulku-ai-close,
    .u-option-btn,
    .u-option-btn::before,
    .u-option-btn::after,
    #ulku-ai-input,
    #ulku-ai-send {
        transition: none !important;
    }
}