/* ==========================================================================
   NOOK LANDING PAGE (ALFA SÜRÜMÜ)
   Sade, Odaklı & Hızlı: 3D Profil Kartı, Auth ve Temel Bilgilendirme
   ========================================================================== */

/* #region 1: LANDING DEĞİŞKENLERİ VE TOKENS */
:root {
    --landing-bg-void: #06070f;
    --landing-bg-panel: #0d1021;
    --landing-bg-panel-2: #141830;

    --landing-border-soft: rgba(255, 255, 255, 0.08);
    --landing-border-soft-2: rgba(255, 255, 255, 0.14);
    
    --landing-text-primary: #f2f3f8;
    --landing-text-muted: #8d92ab;
    --landing-text-faint: #565a73;
    
    --landing-amber: #f59e0b;
    --landing-amber-hover: #fbbf24;
    --landing-amber-deep: #d97706;

    --landing-white-rgb: 255, 255, 255;
    --landing-danger-rgb: 239, 68, 68;
    --landing-danger-light: #fca5a5;

    --landing-font-primary: 'Montserrat', sans-serif;
    --font-mono: 'Roboto Mono', monospace;

    --landing-fw-regular: 400;
    --landing-fw-medium: 500;
    --landing-fw-semibold: 600;
    --landing-fw-bold: 700;
    --landing-fw-extrabold: 800;

    --landing-fs-xs: 0.78rem;
    --landing-fs-sm: 0.86rem;
    --landing-fs-base: 1.00rem;
    --landing-fs-md: 1.15rem;
    --landing-fs-lg: 1.35rem;
    --landing-fs-xl: 1.65rem;
    --landing-fs-2xl: 2.00rem;
    --landing-fs-3xl: 2.50rem;

    --landing-radius-xs: 6px;
    --landing-radius-btn: 10px;
    --landing-radius-card: 16px;
    --landing-radius-panel: 24px;
    --landing-radius-pill: 999px;
    --landing-radius-circle: 50%;

    --landing-transition-fast: 0.2s ease;
    --landing-transition-flip: 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
}
/* #endregion */

/* #region 2: LANDING SAHNE VE KOZMİK ARKA PLAN */
.landing-screen {
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    overflow-y: auto; 
    overflow-x: hidden;
    position: relative;
    z-index: 10;
    background: transparent; 
}

.landing-starfield {
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image: 
        radial-gradient(1px 1px at 30px 40px, rgba(255, 255, 255, 0.35), transparent),
        radial-gradient(1.5px 1.5px at 160px 240px, rgba(255, 255, 255, 0.45), transparent),
        radial-gradient(1px 1px at 320px 90px, rgba(255, 255, 255, 0.3), transparent),
        radial-gradient(2px 2px at 480px 320px, rgba(245, 158, 11, 0.4), transparent);
    background-size: 550px 550px;
    opacity: 0.75;
    z-index: 1;
}
/* #endregion */

/* #region 3: ÜST GEZİNTİ ÇUBUĞU (NAVBAR & LOGO & USER) */
.landing-navbar {
    position: fixed; 
    top: 0;
    left: 0;
    width: 100%;
    padding: 1.1rem 7%; 
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 100;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08); 
    background: rgba(6, 7, 15, 0.65); 
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-sizing: border-box;
}

.landing-nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    text-decoration: none;
}

.landing-nav-logo-box {
    background: linear-gradient(135deg, var(--landing-amber), var(--landing-amber-hover));
    color: #111111;
    width: 32px;
    height: 32px;
    border-radius: var(--landing-radius-btn);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--landing-fw-extrabold);
    font-family: var(--landing-font-primary);
    box-shadow: 0 4px 15px rgba(245, 158, 11, 0.4);
}

.landing-brand-col {
    display: flex;
    align-items: center;
    gap: 8px;
}

.landing-nav-brand-text {
    font-size: var(--landing-fs-xl);
    font-weight: var(--landing-fw-bold);
    color: rgb(var(--landing-white-rgb));
}

.landing-nav-badge {
    background: rgba(245, 158, 11, 0.15);
    border: 1px solid rgba(245, 158, 11, 0.45);
    color: var(--landing-amber);
    font-size: 10px;
    font-weight: 700;
    padding: 2px 7px;
    border-radius: var(--landing-radius-pill);
    font-family: var(--font-mono);
    letter-spacing: 0.08em;
}

.landing-nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.landing-nav-login-btn {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.18);
    color: rgb(var(--landing-white-rgb));
    padding: 8px 22px;
    border-radius: var(--landing-radius-pill);
    font-size: 0.88rem;
    font-weight: var(--landing-fw-semibold);
    cursor: pointer;
    transition: all var(--landing-transition-fast);
}

.landing-nav-login-btn:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.35);
}

.landing-nav-user-menu {
    position: relative;
}

.landing-nav-user-trigger {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--landing-border-soft);
    padding: 6px 12px 6px 10px;
    border-radius: var(--landing-radius-pill);
    cursor: pointer;
    color: var(--landing-text-primary);
    font-family: var(--landing-font-primary);
    transition: var(--landing-transition-fast);
}

.landing-nav-user-trigger:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: var(--landing-border-soft-2);
}

.landing-nav-user-name {
    font-size: var(--landing-fs-sm);
    font-weight: var(--landing-fw-semibold);
    max-width: 120px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.landing-nav-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 140px;
    width: max-content;
    max-width: 260px;
    background: var(--landing-bg-panel);
    border: 1px solid var(--landing-border-soft-2);
    border-radius: var(--landing-radius-btn);
    padding: 8px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-10px);
    transition: var(--landing-transition-fast);
    z-index: 105;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
}

.landing-nav-dropdown.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.landing-nav-dropdown-item {
    padding: 10px 12px;
    border-radius: var(--landing-radius-xs);
    font-size: var(--landing-fs-sm);
    font-weight: var(--landing-fw-medium);
    color: var(--landing-text-muted);
    text-decoration: none;
    cursor: pointer;
    background: transparent;
    border: none;
    text-align: left;
    transition: var(--landing-transition-fast);
    font-family: var(--landing-font-primary);
}

.landing-nav-dropdown-item:hover {
    background: rgba(255, 255, 255, 0.06);
    color: var(--landing-text-primary);
}

.landing-nav-dropdown-item.text-danger:hover {
    background: rgba(var(--landing-danger-rgb), 0.15);
    color: var(--landing-danger-light);
}
/* #endregion */

/* #region 4: HERO BÖLÜMÜ (MANŞET & 3D FLIP KART) */
.landing-main-wrap {
    position: relative;
    z-index: 2;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 32px 40px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-sizing: border-box;
}

.landing-hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex: 1;
    padding: 120px 4% 60px; 
    gap: 60px; 
    box-sizing: border-box;
}

.landing-hero-left {
    flex: 1.1;
    max-width: 520px;
}

.landing-hero-title {
    font-size: clamp(2.8rem, 5vw, 4.2rem);
    font-weight: var(--landing-fw-extrabold);
    color: #ffffff;
    margin: 0 0 1rem;
    line-height: 1.08;
    letter-spacing: -0.025em;
}

.landing-hero-subtitle {
    font-size: var(--landing-fs-md);
    color: var(--landing-text-muted);
    line-height: 1.6;
    margin: 0 0 2.2rem;
    font-weight: var(--landing-fw-regular);
}

.landing-hero-cta-group {
    display: flex;
    align-items: center;
    gap: 16px;
}

.landing-hero-cta-btn {
    background: linear-gradient(135deg, var(--landing-amber), var(--landing-amber-hover));
    color: #121008;
    border: none;
    border-radius: var(--landing-radius-pill);
    padding: 14px 34px;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    font-family: var(--landing-font-primary);
    box-shadow: 0 4px 20px rgba(245, 158, 11, 0.35);
}

.landing-hero-cta-btn:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 6px 26px rgba(245, 158, 11, 0.5);
}

/* Sağ Masa & 3D Kart */
.landing-hero-right {
    flex: 0.9;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    perspective: 1200px;
}

.tilted-visual-wrapper {
    width: 380px;  
    height: 480px; 
    transform: rotateY(-14deg) rotateX(7deg) rotateZ(-2deg) translateZ(0px); 
    transform-style: preserve-3d;
    transition: transform var(--landing-transition-flip); 
}

.tilted-visual-wrapper.is-flat {
    transform: rotateY(0deg) rotateX(0deg) rotateZ(0deg) translateZ(40px);
}

.flip-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
    transition: transform var(--landing-transition-flip); 
}

.flip-card-inner.is-flipped {
    transform: rotateY(180deg);
}

.flip-card-front, 
.flip-card-back {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    backface-visibility: hidden; 
    -webkit-backface-visibility: hidden;
    border-radius: var(--landing-radius-panel);
}

.flip-card-front {
    transform: rotateY(0deg); 
}

.flip-card-back {
    transform: rotateY(180deg); 
}
/* #endregion */

/* #region 5: NOOK PROFIL KARTI (ÖN YÜZ) */
.nook-profile-card {
    width: 100%; 
    height: 100%; 
    display: flex;
    flex-direction: column;
    box-sizing: border-box;
    border-radius: var(--landing-radius-panel);
    background: linear-gradient(165deg, rgba(30, 34, 58, 0.65), rgba(12, 14, 26, 0.96));
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.1), 0 20px 50px rgba(0, 0, 0, 0.6);
    font-family: var(--landing-font-primary);
    color: rgb(var(--landing-white-rgb));
    user-select: none;
    position: relative; 
    overflow: hidden;
}

.nook-profile-card::before {
    content: '';
    position: absolute;
    inset: -30px;
    background: radial-gradient(circle at center, var(--nook-accent-live, var(--landing-amber)) 0%, transparent 65%);
    filter: blur(40px);
    opacity: 0.18;
    z-index: -1;
    border-radius: var(--landing-radius-panel);
    pointer-events: none;
    transition: background 0.4s ease;
}

.user-card-preview-inner {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    position: relative;
    box-sizing: border-box;
}

.user-card-preview-banner {
    width: 100%;
    height: 130px;
    flex-shrink: 0;
    position: relative;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.user-card-badge {
    position: absolute;
    top: 12px;
    right: 14px;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.1em;
    padding: 3px 8px;
    border-radius: var(--landing-radius-pill);
    color: var(--landing-amber);
    font-family: var(--font-mono);
}

.user-card-preview-avatar {
    width: 68px;
    height: 68px;
    border-radius: var(--landing-radius-circle);
    margin: -34px auto 0;
    border: 3.5px solid #14172a;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    color: #111111;
    position: relative;
    z-index: 5;
    flex-shrink: 0;
}

.user-card-preview-body {
    padding: 10px 22px 22px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    flex: 1;
    min-height: 0;
}

.user-card-preview-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--landing-text-primary);
    margin-top: 6px;
    line-height: 1.2;
}

.user-card-preview-role {
    font-size: 0.85rem;
    font-weight: 500;
    margin-top: 4px;
}

.user-card-preview-bio {
    font-size: 0.88rem;
    color: var(--landing-text-muted);
    line-height: 1.5;
    margin: 12px 0 auto;
    max-height: 70px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-card-preview-tags {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 14px;
    padding-top: 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    width: 100%;
}

.user-card-preview-pill {
    padding: 4px 10px;
    border-radius: var(--landing-radius-pill);
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 11px;
    color: var(--landing-text-muted);
    font-weight: 500;
}
/* #endregion */

/* #region 6: AUTH KUTUSU (ARKA YÜZ) */
.landing-box {
    width: 100%; 
    height: 100%;
    background: linear-gradient(165deg, rgba(30, 34, 58, 0.7), rgba(12, 14, 26, 0.98));
    backdrop-filter: blur(16px); 
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.1), 0 20px 50px rgba(0, 0, 0, 0.6);
    border-radius: var(--landing-radius-panel);
    padding: 36px 24px 24px;
    display: flex;
    flex-direction: column;
    text-align: center;
    position: relative;
    overflow: hidden;
    box-sizing: border-box;
}

.landing-box-close {
    position: absolute; 
    top: 15px; 
    right: 15px; 
    background: transparent; 
    border: none;
    color: rgba(var(--landing-white-rgb), .3); 
    font-size: var(--landing-fs-xl); 
    line-height: 1; 
    cursor: pointer; 
    transition: color .2s ease; 
    z-index: 2;
}

.landing-box-close:hover { 
    color: rgb(var(--landing-white-rgb)); 
}

.landing-title {
    font-size: var(--landing-fs-2xl); 
    font-weight: var(--landing-fw-bold); 
    letter-spacing: -.02em; 
    margin: 0 0 20px;
    flex-shrink: 0;
    background: linear-gradient(180deg, #ffffff 20%, var(--landing-amber-hover) 130%);
    -webkit-background-clip: text; 
    background-clip: text; 
    color: transparent;
}

.landing-form-container {
    position: relative;
    flex: 1;
    min-height: 0;
    display: flex; 
    flex-direction: column; 
    justify-content: center; 
    gap: 14px;
}

.landing-auth-input {
    width: 100%; 
    height: 48px; 
    padding: 0 16px; 
    border-radius: var(--landing-radius-btn);
    background: rgba(0, 0, 0, .25); 
    border: 1px solid rgba(255, 255, 255, .08);
    color: rgb(var(--landing-white-rgb)); 
    font-family: var(--landing-font-primary); 
    font-size: var(--landing-fs-base);
    outline: none; 
    box-sizing: border-box;
    transition: border-color .2s ease, background .2s ease;
}

.landing-auth-input::placeholder { 
    color: rgba(var(--landing-white-rgb), .35); 
}

.landing-auth-input:focus { 
    border-color: var(--landing-amber-hover); 
    background: rgba(0, 0, 0, .45); 
}

#landing-username-group { 
    max-height: 0; 
    opacity: 0; 
    margin: 0; 
    overflow: hidden; 
    transition: max-height .4s ease, opacity .4s ease, margin .4s ease; 
}

.landing-box.register-mode #landing-username-group { 
    max-height: 50px; 
    opacity: 1; 
    margin-bottom: 2px; 
}

.landing-submit-btn {
    width: 100%; 
    height: 42px; 
    min-height: 42px;
    padding: 0 16px;
    margin-top: 2px;
    background-color: rgba(245, 158, 11, .18); 
    border: 1px solid rgba(245, 158, 11, .45);
    border-radius: var(--landing-radius-pill); 
    color: rgb(var(--landing-white-rgb)); 
    font-family: var(--landing-font-primary);
    font-size: var(--landing-fs-sm); 
    font-weight: var(--landing-fw-semibold); 
    cursor: pointer; 
    display: inline-flex;
    align-items: center;
    justify-content: center;
    white-space: nowrap;
    box-sizing: border-box;
    user-select: none;
    flex-shrink: 0;
    transition: all .2s ease;
}

.landing-submit-btn:hover { 
    background-color: rgba(245, 158, 11, .28); 
    box-shadow: 0 0 14px rgba(245, 158, 11, .25); 
}

.landing-submit-btn:disabled {
    opacity: 0.35;
    cursor: not-allowed;
    pointer-events: none;
}

.landing-auth-switch {
    flex-shrink: 0;
    padding-top: 18px;
    display: flex; 
    align-items: center; 
    justify-content: center; 
    gap: 6px;
    font-size: var(--landing-fs-xs); 
    color: rgba(var(--landing-white-rgb), .5);
}

.landing-auth-switch-btn {
    background: transparent; 
    border: none; 
    color: rgba(245, 158, 11, .95);
    font-family: var(--landing-font-primary); 
    font-weight: var(--landing-fw-semibold); 
    cursor: pointer;
    text-decoration: underline; 
    text-underline-offset: 3px; 
    transition: color .2s ease;
}

.landing-auth-switch-btn:hover { 
    color: rgb(var(--landing-white-rgb)); 
}
/* #endregion */

/* #region 7: SADE ALFA FOOTER (VERİ POLİTİKASI & SHOUTOUT) */
.landing-alfa-footer {
    border-top: 1px solid var(--landing-border-soft);
    padding: 30px 4% 10px;
    display: grid;
    grid-template-columns: 1.4fr 1.4fr 1fr;
    gap: 36px;
    box-sizing: border-box;
}

.alfa-footer-col h4 {
    font-size: 0.88rem;
    font-weight: 700;
    margin: 0 0 8px 0;
    color: var(--landing-text-primary);
}

.alfa-footer-col p {
    color: var(--landing-text-muted);
    font-size: 0.82rem;
    line-height: 1.55;
    margin: 0;
}

.alfa-footer-col a {
    color: var(--landing-amber);
    text-decoration: none;
    transition: color 0.18s ease;
}

.alfa-footer-col a:hover {
    color: var(--landing-amber-hover);
    text-decoration: underline;
}
/* #endregion */

/* #region 8: MOBİL VE TABLET DUYARLILIK (@media) */
@media (max-width: 900px) {
    .landing-navbar {
        padding: 1rem 5%;
    }

    .landing-hero {
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        min-height: auto;
        padding: 105px 4% 40px;
        gap: 40px;
    }

    .landing-hero-left {
        max-width: 100%;
        text-align: center;
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .landing-hero-title {
        font-size: 2.5rem;
    }

    .landing-hero-subtitle {
        font-size: 0.98rem;
        max-width: 500px;
    }

    .landing-hero-right {
        width: 100%;
        justify-content: center;
    }

    .tilted-visual-wrapper {
        width: min(380px, 92vw);
        height: 480px;
        max-height: 72dvh;
        transform: none;
    }

    .tilted-visual-wrapper.is-flat {
        transform: none;
    }

    .landing-alfa-footer {
        grid-template-columns: 1fr;
        gap: 20px;
        padding-top: 24px;
    }
}

@media (max-width: 560px) {
    .landing-hero-title {
        font-size: 2.1rem;
    }

    .landing-hero-cta-btn {
        width: 100%;
        justify-content: center;
    }

    .tilted-visual-wrapper {
        width: 100%;
        height: 460px;
    }
}
/* #endregion */