/* ==========================================================================
   Dörtrenk Kolej | Hakkımızda Sayfası
   Yol: css/hakkimizda.css
   ========================================================================== */

:root {
    --c-primary: #0c5adb;
    --c-primary-dark: #093b8f;
    --c-primary-soft: #eaf2ff;

    --c-dark: #091224;
    --c-dark-soft: #162033;
    --c-text: #64748b;
    --c-bg: #f6f9ff;
    --c-white: #ffffff;

    --radius-sm: 16px;
    --radius-md: 24px;
    --radius-lg: 40px;
    --radius-xl: 52px;

    --shadow-soft: 0 12px 40px -14px rgba(8, 40, 92, 0.12);
    --shadow-float: 0 22px 44px -18px rgba(12, 90, 219, 0.22);
    --shadow-card: 0 24px 60px -24px rgba(8, 40, 92, 0.14);

    --bezier: cubic-bezier(0.16, 1, 0.3, 1);
}

.dr-about {
    position: relative;
    padding-bottom: 80px;
    overflow: hidden;
}

.text-center {
    text-align: center;
}

.mx-auto {
    margin-left: auto;
    margin-right: auto;
}

/* ==========================================================================
   BACKGROUND
   ========================================================================== */

.dr-mesh-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
    pointer-events: none;
}

.dr-mesh-blob {
    position: absolute;
    filter: blur(90px);
    border-radius: 50%;
    opacity: 0.28;
}

.blob-about-1 {
    width: 600px;
    height: 600px;
    background: var(--c-primary);
    top: -220px;
    left: 10%;
}

.blob-about-2 {
    width: 500px;
    height: 500px;
    background: #dbeafe;
    top: 34%;
    right: -160px;
}

/* ==========================================================================
   HERO
   ========================================================================== */

.dr-about-hero {
    padding: 100px 0 40px;
    display: flex;
    justify-content: center;
}

.dr-hero-text {
    max-width: 880px;
    animation: fadeUp 0.8s var(--bezier);
}

.dr-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 16px;
    background: rgba(255,255,255,0.88);
    border: 1px solid rgba(0,0,0,0.04);
    border-radius: 999px;
    font-size: 14px;
    font-weight: 700;
    color: var(--c-dark);
    margin-bottom: 24px;
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(10px);
}

.dr-badge-dot {
    width: 8px;
    height: 8px;
    background: var(--c-primary);
    border-radius: 50%;
    box-shadow: 0 0 0 6px rgba(12, 90, 219, 0.10);
}

.dr-title-huge {
    font-size: clamp(42px, 6vw, 74px);
    font-weight: 900;
    letter-spacing: -0.045em;
    line-height: 1.05;
    color: var(--c-dark);
}

.dr-text-gradient {
    background: linear-gradient(135deg, var(--c-primary-dark), var(--c-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ==========================================================================
   MANIFESTO
   ========================================================================== */

.dr-manifesto {
    padding: 40px 0 80px;
}

.dr-manifesto-box {
    max-width: 920px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    padding: 44px;
}

.quote-mark {
    font-size: 120px;
    font-weight: 900;
    color: var(--c-primary);
    opacity: 0.14;
    line-height: 0;
    position: absolute;
    top: 54px;
    left: 50%;
    transform: translateX(-50%);
    z-index: -1;
}

.dr-manifesto-box h2 {
    font-size: clamp(24px, 3vw, 36px);
    color: var(--c-dark);
    font-weight: 600;
    line-height: 1.6;
    letter-spacing: -0.02em;
    margin-bottom: 22px;
}

.dr-manifesto-box p {
    font-size: 15px;
    font-weight: 800;
    color: var(--c-primary-dark);
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

/* ==========================================================================
   STORY
   ========================================================================== */

.dr-story {
    padding: 60px 0 100px;
}

.dr-story-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 80px;
    align-items: center;
}

.dr-story-images {
    position: relative;
    width: 100%;
    height: 100%;
    min-height: 500px;
}

.dr-img-main {
    position: absolute;
    top: 0;
    left: 0;
    width: 80%;
    height: 85%;
    background: var(--c-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    padding: 18px;
    z-index: 1;
    border: 1px solid rgba(12, 90, 219, 0.06);
}

.dr-img-secondary {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 55%;
    height: 50%;
    background: var(--c-white);
    border-radius: var(--radius-md);
    box-shadow: 0 30px 60px -18px rgba(8, 40, 92, 0.18);
    padding: 12px;
    z-index: 2;
    border: 4px solid var(--c-bg);
}

.dr-story-images img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-md);
}

.dr-story-images .placeholder-img {
    object-fit: contain;
    padding: 20px;
}

.dr-section-subtitle {
    display: block;
    font-size: 13px;
    font-weight: 800;
    color: var(--c-primary-dark);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 8px;
}

.dr-section-title {
    font-size: 46px;
    font-weight: 900;
    color: var(--c-dark);
    letter-spacing: -0.04em;
    margin-bottom: 24px;
}

.dr-lead-text {
    font-size: 18px;
    color: var(--c-text);
    margin-bottom: 40px;
    line-height: 1.85;
}

.dr-vision-mission {
    display: flex;
    flex-direction: column;
    gap: 22px;
}

.dr-vm-box {
    display: flex;
    gap: 18px;
    background: linear-gradient(180deg, rgba(255,255,255,0.98) 0%, rgba(246,249,255,0.96) 100%);
    padding: 24px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(12, 90, 219, 0.08);
}

.dr-vm-icon {
    font-size: 30px;
    flex-shrink: 0;
    background: rgba(12, 90, 219, 0.08);
    width: 58px;
    height: 58px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
}

.dr-vm-text h3 {
    font-size: 20px;
    margin-bottom: 8px;
    color: var(--c-dark);
}

.dr-vm-text p {
    margin: 0;
    font-size: 15px;
    color: var(--c-text);
    line-height: 1.7;
}

/* ==========================================================================
   STATS
   ========================================================================== */

.dr-stats {
    padding: 40px 0 80px;
}

.dr-stats-glass {
    background: rgba(255, 255, 255, 0.72);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.8);
    border-radius: var(--radius-lg);
    padding: 50px;
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 30px;
    box-shadow: 0 20px 40px rgba(8, 40, 92, 0.05);
}

.dr-stat-item {
    text-align: center;
}

.dr-stat-no {
    display: block;
    font-size: 48px;
    font-weight: 900;
    color: var(--c-dark);
    margin-bottom: 6px;
    letter-spacing: -0.03em;
}

.dr-stat-label {
    font-size: 14px;
    font-weight: 800;
    color: var(--c-primary-dark);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

/* ==========================================================================
   VALUES
   ========================================================================== */

.dr-core-values {
    padding: 80px 0;
}

.dr-section-head {
    margin-bottom: 50px;
}

.dr-values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.dr-value-card {
    background: linear-gradient(180deg, rgba(255,255,255,0.98) 0%, rgba(247,250,255,0.96) 100%);
    padding: 40px;
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-soft);
    transition: all 0.4s var(--bezier);
    border: 1px solid rgba(12, 90, 219, 0.08);
}

.dr-value-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-card);
}

.dr-card-active {
    background: linear-gradient(145deg, #0d4fc0 0%, #093b8f 55%, #08285c 100%);
    color: var(--c-white);
    border-color: transparent;
}

.dr-card-active h3 {
    color: var(--c-white);
}

.dr-card-active p {
    color: rgba(255,255,255,0.74);
}

.dr-value-icon {
    font-size: 46px;
    margin-bottom: 24px;
}

.dr-value-card h3 {
    font-size: 22px;
    margin-bottom: 16px;
    color: var(--c-dark);
}

.dr-value-card p {
    font-size: 15px;
    line-height: 1.75;
}

/* ==========================================================================
   CTA
   ========================================================================== */

.dr-cta {
    padding: 80px 0 100px;
}

.dr-cta-box {
    background: linear-gradient(135deg, #0d4fc0 0%, #0a419d 46%, #08285c 100%);
    border-radius: var(--radius-lg);
    padding: 80px 60px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-float);
    gap: 32px;
}

.dr-cta-text h2 {
    font-size: 44px;
    margin-bottom: 16px;
    color: var(--c-white);
    letter-spacing: -0.03em;
}

.dr-cta-text p {
    font-size: 18px;
    color: rgba(255,255,255,0.78);
    margin: 0;
    max-width: 560px;
    line-height: 1.7;
}

.dr-cta-btns {
    display: flex;
    gap: 14px;
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */

.dr-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 44px;
    padding: 0 18px;
    border-radius: 12px;
    font-weight: 700;
    font-size: 14px;
    letter-spacing: -0.01em;
    line-height: 1;
    transition:
        transform 0.28s var(--bezier),
        box-shadow 0.28s var(--bezier),
        background 0.28s ease,
        color 0.28s ease,
        border-color 0.28s ease;
    border: 1px solid transparent;
    text-decoration: none;
    cursor: pointer;
    white-space: nowrap;
}

.dr-btn:hover {
    transform: translateY(-2px);
}

.dr-btn:active {
    transform: translateY(0);
}

.dr-btn-white {
    background: linear-gradient(180deg, #ffffff 0%, #f2f6fd 100%);
    color: var(--c-dark);
    border: 1px solid rgba(255,255,255,0.42);
    box-shadow: 0 12px 24px -18px rgba(255,255,255,0.62);
}

.dr-btn-white:hover {
    box-shadow: 0 16px 30px -18px rgba(255,255,255,0.76);
}

.dr-btn-dark {
    background: #0c5adb;
    color: var(--c-white);
    border-color: rgba(12, 90, 219, 0.14);
    box-shadow: 0 12px 26px -18px rgba(12, 90, 219, 0.34);
}

.dr-btn-dark:hover {
    background: #093b8f;
    box-shadow: 0 16px 30px -18px rgba(12, 90, 219, 0.42);
}

/* ==========================================================================
   ANIMATION
   ========================================================================== */

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */

@media (max-width: 1024px) {
    .dr-story-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .dr-story-images {
        max-width: 600px;
        margin: 0 auto;
        min-height: 420px;
    }

    .dr-values-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .dr-cta-box {
        flex-direction: column;
        text-align: center;
        gap: 40px;
        padding: 50px 30px;
    }

    .dr-cta-text p {
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .dr-values-grid {
        grid-template-columns: 1fr;
    }

    .dr-stats-glass {
        flex-direction: column;
        gap: 40px;
        padding: 40px;
    }

    .dr-vm-box {
        flex-direction: column;
        text-align: center;
        align-items: center;
    }

    .dr-img-main {
        width: 90%;
    }

    .dr-img-secondary {
        width: 60%;
    }

    .dr-cta-btns {
        flex-direction: column;
        width: 100%;
    }

    .dr-btn {
        width: 100%;
    }
}

@media (max-width: 560px) {
    .dr-title-huge {
        font-size: 40px;
    }

    .dr-section-title {
        font-size: 34px;
    }

    .dr-manifesto-box {
        padding: 24px 10px;
    }

    .dr-stats-glass {
        padding: 30px 22px;
    }

    .dr-btn {
        min-height: 42px;
        padding: 0 14px;
        font-size: 13px;
        border-radius: 10px;
    }
}