/* ============================================================
   Galatasaray Üniversitesi — E-posta Parola Sistemi
   Tema: Köklü Kurumsal Modern
   Renkler: #333333 (primary)  #f5c000 (secondary)  #a70301 (alternative)
   ============================================================ */

@font-face {
    font-family: "Cerebri Sans";
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url("fonts/cerebri-sans-400.woff") format("woff");
}
@font-face {
    font-family: "Cerebri Sans";
    font-style: normal;
    font-weight: 600;
    font-display: swap;
    src: url("fonts/cerebri-sans-600.woff") format("woff");
}
@font-face {
    font-family: "Cerebri Sans";
    font-style: normal;
    font-weight: 700;
    font-display: swap;
    src: url("fonts/cerebri-sans-700.woff") format("woff");
}
@font-face {
    font-family: "Cerebri Sans";
    font-style: normal;
    font-weight: 800;
    font-display: swap;
    src: url("fonts/cerebri-sans-800.woff") format("woff");
}

:root {
    --gs-dark: #333333;
    --gs-dark-800: #262626;
    --gs-dark-900: #1b1b1b;
    --gs-yellow: #f5c000;
    --gs-yellow-soft: #ffd84a;
    --gs-red: #a70301;
    --gs-red-dark: #850201;
    --gs-bg: #f3f1ec;
    --gs-surface: #ffffff;
    --gs-border: #e6e1d8;
    --gs-text: #2b2b2b;
    --gs-muted: #726d64;
    --gs-radius: 14px;
    --gs-radius-sm: 10px;
    --gs-shadow-sm: 0 1px 2px rgba(27, 27, 27, .06), 0 2px 8px rgba(27, 27, 27, .05);
    --gs-shadow-md: 0 6px 24px rgba(27, 27, 27, .10), 0 2px 6px rgba(27, 27, 27, .06);
    --gs-shadow-lg: 0 18px 50px rgba(27, 27, 27, .16);
    --gs-ease: cubic-bezier(.22, .61, .36, 1);

    /* Bootstrap overrides */
    --bs-primary: #333333;
    --bs-primary-rgb: 51, 51, 51;
    --bs-body-color: var(--gs-text);
    --bs-body-bg: var(--gs-bg);
    --bs-link-color: var(--gs-red);
    --bs-link-color-rgb: 167, 3, 1;
    --bs-link-hover-color: var(--gs-red-dark);
    --bs-border-color: var(--gs-border);
    --bs-font-sans-serif: "Cerebri Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
}

/* ----------------------------------------------------------------
   Base
   ---------------------------------------------------------------- */
* {
    -webkit-tap-highlight-color: transparent;
}

html {
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    font-family: var(--bs-font-sans-serif);
    color: var(--gs-text);
    background-color: var(--gs-bg);
    padding: 0;
    margin: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6 {
    font-family: var(--bs-font-sans-serif);
    font-weight: 700;
    letter-spacing: -.015em;
    color: var(--gs-dark);
}

a {
    text-decoration: none;
    transition: color .18s var(--gs-ease);
}
a:hover { text-decoration: none; }

::selection {
    background: var(--gs-yellow);
    color: var(--gs-dark);
}

/* Reset the legacy rule that capped every input at 280px (broke mobile) */
input, select, textarea { max-width: none; }

/* ----------------------------------------------------------------
   Navbar
   ---------------------------------------------------------------- */
.gs-navbar {
    background: #ffffff;
    box-shadow: 0 1px 0 var(--gs-border), 0 4px 16px rgba(27, 27, 27, .05);
    padding-top: .95rem;
    padding-bottom: .95rem;
}
    .gs-navbar .container {
        padding-left: 1.0rem;
        padding-right: 1.0rem;
    }

.gs-navbar .navbar-brand {
    display: flex;
    align-items: center;
    gap: .65rem;
    padding-top: 0;
    padding-bottom: 0;
    font-family: var(--bs-font-sans-serif);
    font-weight: 700;
    letter-spacing: -.01em;
    color: var(--gs-dark);
    line-height: 1.05;
}

.gs-navbar .navbar-brand img {
    height: 40px;
    width: auto;
    display: block;
}

.gs-brand-text { display: flex; flex-direction: column; gap: 3px; }
.gs-brand-text .gs-brand-main {
    font-size: 1.06rem;
    line-height: 1.1;
    color: var(--gs-dark);
}
.gs-brand-text .gs-brand-sub {
    font-family: var(--bs-font-sans-serif);
    font-weight: 600;
    font-size: .64rem;
    line-height: 1;
    letter-spacing: .06em;
    text-transform: uppercase;
    color: var(--gs-red);
}

.gs-navbar .navbar-nav .nav-link {
    color: rgba(255, 255, 255, .82);
    font-weight: 600;
    font-size: .95rem;
    padding: .5rem .9rem;
    border-radius: 8px;
    position: relative;
    transition: color .18s var(--gs-ease), background-color .18s var(--gs-ease);
}
.gs-navbar .navbar-nav .nav-link:hover,
.gs-navbar .navbar-nav .nav-link:focus {
    color: #fff;
    background: rgba(255, 255, 255, .07);
}
.gs-navbar .navbar-nav .nav-link.active {
    color: var(--gs-yellow);
}

.gs-navbar .navbar-toggler {
    border: 1px solid rgba(255, 255, 255, .25);
    padding: .35rem .55rem;
    border-radius: 9px;
}
.gs-navbar .navbar-toggler:focus { box-shadow: 0 0 0 .2rem rgba(245, 192, 0, .35); }
.gs-navbar .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='%23f5c000' stroke-width='2.4' stroke-linecap='round' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
}

/* ----------------------------------------------------------------
   Hero
   ---------------------------------------------------------------- */
.gs-hero {
    position: relative;
    overflow: hidden;
    background: var(--gs-dark);
    color: #fff;
    padding: 1.6rem 0 3rem;
}

/* Palace silhouette (white art) sits at the bottom as a subtle watermark */
.gs-hero::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: -2px;
    transform: translateX(-50%);
    width: min(1180px, 116%);
    height: 60%;
    background: url("images/saray-illustrator.png") center bottom / contain no-repeat;
    opacity: .06;
    pointer-events: none;
}

.gs-hero .container { position: relative; z-index: 2; }

.gs-hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    font-family: var(--bs-font-sans-serif);
    font-weight: 700;
    font-size: .72rem;
    letter-spacing: .2em;
    text-transform: uppercase;
    color: var(--gs-yellow);
    margin-bottom: .9rem;
}
.gs-hero-eyebrow::before {
    content: "";
    width: 26px;
    height: 2px;
    background: var(--gs-yellow);
    display: inline-block;
}

.gs-hero h1 {
    color: #fff;
    font-size: clamp(1.7rem, 5.4vw, 2.7rem);
    line-height: 1.07;
    margin-bottom: .85rem;
    max-width: 16ch;
}
.gs-hero h1 .gs-accent { color: var(--gs-yellow); }

.gs-hero p {
    color: rgba(255, 255, 255, .82);
    font-size: 1.02rem;
    line-height: 1.6;
    max-width: 60ch;
    margin-bottom: 0;
}

/* ----------------------------------------------------------------
   Main / layout shell
   ---------------------------------------------------------------- */
.gs-main { padding-bottom: 0; }

.gs-section { padding: 2.4rem 0; }

.gs-card {
    background: var(--gs-surface);
    border: 1px solid var(--gs-border);
    border-radius: var(--gs-radius);
    box-shadow: var(--gs-shadow-md);
    overflow: hidden;
}

.gs-form-card {
    margin-top: .5rem;
    position: relative;
    z-index: 5;
}
.gs-form-card .gs-card-inner { padding: 1.6rem 1.4rem 1.5rem; }

/* Contact-style two-column form card (PC) — width follows the container */
.gs-contact-aside {
    background: var(--gs-dark);
    color: #fff;
    padding: 2.4rem 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.gs-aside-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    font-family: var(--bs-font-sans-serif);
    font-weight: 700;
    font-size: .7rem;
    letter-spacing: .2em;
    text-transform: uppercase;
    color: var(--gs-yellow);
    margin-bottom: .9rem;
}
.gs-aside-eyebrow::before {
    content: "";
    width: 24px;
    height: 2px;
    background: var(--gs-yellow);
}
.gs-aside-title {
    color: #fff;
    font-size: 1.4rem;
    line-height: 1.18;
    margin-bottom: .7rem;
}
.gs-aside-text {
    color: rgba(255, 255, 255, .78);
    font-size: .95rem;
    line-height: 1.6;
    margin-bottom: 1.4rem;
}
.gs-aside-steps {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: .9rem;
}
.gs-aside-steps li {
    display: flex;
    align-items: flex-start;
    gap: .8rem;
    color: rgba(255, 255, 255, .92);
    font-weight: 500;
    font-size: .95rem;
    line-height: 1.4;
}
.gs-step-no {
    flex: 0 0 28px;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--gs-yellow);
    color: var(--gs-dark);
    font-weight: 700;
    font-size: .85rem;
    display: grid;
    place-items: center;
}
.gs-contact-main { padding: 1.9rem 1.8rem; }

.gs-card-title {
    display: flex;
    align-items: center;
    gap: .6rem;
    font-size: 1.18rem;
    margin: 0 0 .25rem;
}
.gs-card-title .gs-tick {
    width: 6px;
    height: 22px;
    border-radius: 3px;
    background: var(--gs-red);
    display: inline-block;
}
.gs-card-subtitle {
    color: var(--gs-muted);
    font-size: .92rem;
    margin: 0 0 1.3rem;
}

/* ----------------------------------------------------------------
   Forms
   ---------------------------------------------------------------- */
.form-label, .col-form-label {
    font-weight: 600;
    color: var(--gs-dark);
    font-size: .9rem;
    margin-bottom: .35rem;
}

.form-control,
.form-select {
    border: 1.5px solid var(--gs-border);
    border-radius: var(--gs-radius-sm);
    padding: .7rem .85rem;
    font-size: 1rem;
    color: var(--gs-text);
    background-color: #fff;
    transition: border-color .16s var(--gs-ease), box-shadow .16s var(--gs-ease);
    min-height: 48px; /* comfortable touch target */
}
.form-control::placeholder { color: #b3ada3; }

.form-control:focus,
.form-select:focus {
    border-color: var(--gs-yellow);
    box-shadow: 0 0 0 .22rem rgba(245, 192, 0, .28);
    background-color: #fff;
    color: var(--gs-text);
}

.form-select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 12 12'%3E%3Cpath fill='%23333' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    background-size: 14px;
    padding-right: 38px;
}

.form-text { font-size: .82rem; line-height: 1.5; }

/* Read-only detail value (used on detail pages) */
.form-control-plaintext {
    color: var(--gs-dark);
    font-weight: 600;
    padding: .15rem 0;
    font-size: 1rem;
    word-break: break-word;
}

/* input group reveal button (BS5) — eye button sits to the RIGHT of the input */
.input-group .btn.reveal {
    border: 1.5px solid var(--gs-border);
    border-left: none;
    background: #faf8f3;
    color: var(--gs-muted);
    border-radius: 0 var(--gs-radius-sm) var(--gs-radius-sm) 0;
    min-height: 48px;
    flex: 0 0 auto;
}
.input-group .btn.reveal:hover { color: var(--gs-dark); background: #f1ede3; }
.input-group .form-control.pwd {
    border-radius: var(--gs-radius-sm) 0 0 var(--gs-radius-sm);
}
.input-group:focus-within .btn.reveal {
    border-color: var(--gs-yellow);
}

.field-validation-error {
    color: var(--gs-red);
    font-size: .8rem;
    font-weight: 600;
    display: block;
    margin-top: .35rem;
}
.input-validation-error {
    border-color: var(--gs-red) !important;
    box-shadow: 0 0 0 .18rem rgba(167, 3, 1, .14) !important;
}

/* Radio (verification method) */
.form-check-input { width: 1.15em; height: 1.15em; margin-top: .15em; }
.form-check-input:checked {
    background-color: var(--gs-red);
    border-color: var(--gs-red);
}
.form-check-input:focus {
    border-color: var(--gs-yellow);
    box-shadow: 0 0 0 .2rem rgba(245, 192, 0, .3);
}
.form-check-label { font-weight: 500; color: var(--gs-text); }

/* ----------------------------------------------------------------
   Buttons
   ---------------------------------------------------------------- */
.btn {
    font-weight: 600;
    border-radius: var(--gs-radius-sm);
    padding: .72rem 1.4rem;
    min-height: 48px;
    letter-spacing: .005em;
    transition: transform .14s var(--gs-ease), box-shadow .18s var(--gs-ease), background-color .18s var(--gs-ease), color .18s var(--gs-ease);
}
.btn:active { transform: translateY(1px); }

/* Map all Bootstrap button states to GS colors (no default blue on click) */
.btn-primary {
    --bs-btn-bg: var(--gs-dark);
    --bs-btn-border-color: var(--gs-dark);
    --bs-btn-color: #fff;
    --bs-btn-hover-bg: var(--gs-red);
    --bs-btn-hover-border-color: var(--gs-red);
    --bs-btn-hover-color: #fff;
    --bs-btn-active-bg: var(--gs-red);
    --bs-btn-active-border-color: var(--gs-red);
    --bs-btn-active-color: #fff;
    --bs-btn-disabled-bg: #8c8c8c;
    --bs-btn-disabled-border-color: #8c8c8c;
    --bs-btn-disabled-color: #fff;
    --bs-btn-focus-shadow-rgb: 245, 192, 0;
    box-shadow: 0 6px 16px rgba(51, 51, 51, .22);
}
.btn-primary:hover,
.btn-primary:focus,
.btn-primary:active { box-shadow: 0 8px 22px rgba(167, 3, 1, .28); }

.btn-secondary {
    --bs-btn-bg: transparent;
    --bs-btn-border-color: var(--gs-border);
    --bs-btn-color: var(--gs-dark);
    --bs-btn-hover-bg: var(--gs-dark);
    --bs-btn-hover-border-color: var(--gs-dark);
    --bs-btn-hover-color: #fff;
    --bs-btn-active-bg: var(--gs-dark);
    --bs-btn-active-border-color: var(--gs-dark);
    --bs-btn-active-color: #fff;
    --bs-btn-focus-shadow-rgb: 245, 192, 0;
    border-width: 1.5px;
}

.btn-light {
    --bs-btn-bg: #fff;
    --bs-btn-border-color: var(--gs-border);
    --bs-btn-color: var(--gs-dark);
    --bs-btn-hover-bg: #faf8f3;
    --bs-btn-hover-border-color: #d9d3c8;
    --bs-btn-hover-color: var(--gs-dark);
    --bs-btn-active-bg: #f1ede3;
    --bs-btn-active-border-color: #d9d3c8;
    --bs-btn-active-color: var(--gs-dark);
    --bs-btn-focus-shadow-rgb: 245, 192, 0;
    border-width: 1.5px;
}

/* GS yellow accent button (optional use) */
.btn-gs {
    background: var(--gs-yellow);
    border: 1.5px solid var(--gs-yellow);
    color: var(--gs-dark);
    box-shadow: 0 6px 16px rgba(245, 192, 0, .3);
}
.btn-gs:hover, .btn-gs:focus { background: var(--gs-yellow-soft); border-color: var(--gs-yellow-soft); color: var(--gs-dark); }

/* ----------------------------------------------------------------
   Alerts
   ---------------------------------------------------------------- */
.alert {
    border: none;
    border-radius: var(--gs-radius-sm);
    border-left: 4px solid transparent;
    font-size: .94rem;
    padding: .9rem 1.05rem;
}
.alert-success { background: #eaf6ec; color: #1d5a2a; border-left-color: #2e7d32; }
.alert-warning { background: #fff6e0; color: #6b4e00; border-left-color: var(--gs-yellow); }
.alert-danger  { background: #fbe9e8; color: var(--gs-red-dark); border-left-color: var(--gs-red); }
.alert-info    { background: #eaf1f7; color: #1c4b73; border-left-color: #2f6fa5; }

/* ----------------------------------------------------------------
   Detail rows (staff / student readonly info)
   ---------------------------------------------------------------- */
.gs-detail .col-form-label {
    color: var(--gs-muted);
    font-weight: 600;
    font-size: .74rem;
    text-transform: uppercase;
    letter-spacing: .07em;
    margin-bottom: 0;
    padding-top: .3rem;
}
.bb-1 {
    padding-bottom: .65rem;
    margin-bottom: .65rem !important;
    border-bottom: 1px solid var(--gs-border);
}
#passwordHelp { font-weight: 600; }

/* ----------------------------------------------------------------
   Footer (now hosts quick-access links)
   ---------------------------------------------------------------- */
.gs-footer {
    position: relative;
    overflow: hidden;
    background: var(--gs-dark-900);
    color: rgba(255, 255, 255, .72);
    padding: 3rem 0 1.5rem;
}
/* faint palace watermark for depth */
.gs-footer::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: min(1100px, 130%);
    height: 210px;
    background: url("images/saray-illustrator.png") center bottom / contain no-repeat;
    opacity: .14;
    pointer-events: none;
    z-index: 0;
}
.gs-footer .container { position: relative; z-index: 2; }

.gs-footer-top {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr;
    gap: 2.6rem;
    padding-bottom: 2rem;
}

.gs-footer-brand {
    display: flex;
    align-items: center;
    gap: .7rem;
    font-family: var(--bs-font-sans-serif);
    font-weight: 600;
    color: #fff;
    font-size: 1.06rem;
    line-height: 1.12;
    margin-bottom: 1rem;
}
.gs-footer-brand a {
    color: #fff;
}

.gs-footer-brand img { height: 46px; width: auto; }

.gs-footer-tag {
    color: rgba(255, 255, 255, .6);
    font-size: .92rem;
    line-height: 1.65;
    max-width: 42ch;
    margin-bottom: 1.1rem;
}
.gs-footer-site {
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    color: var(--gs-yellow);
    font-weight: 600;
    font-size: .92rem;
}
.gs-footer-site:hover { color: var(--gs-yellow-soft); }

.gs-footer-heading {
    color: #fff;
    font-family: var(--bs-font-sans-serif);
    font-weight: 700;
    font-size: .76rem;
    letter-spacing: .14em;
    text-transform: uppercase;
    margin-bottom: 1.1rem;
    padding-bottom: .6rem;
    border-bottom: 1px solid rgba(255, 255, 255, .1);
}
.gs-footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: .15rem;
}
.gs-footer-links a {
    display: flex;
    align-items: center;
    gap: .7rem;
    color: rgba(255, 255, 255, .76);
    font-size: .92rem;
    font-weight: 500;
    padding: .35rem 0;
    transition: color .16s var(--gs-ease), transform .16s var(--gs-ease);
}
.gs-footer-links a i {
    color: var(--gs-yellow);
    width: 18px;
    text-align: center;
    font-size: .95rem;
    flex: 0 0 18px;
}
.gs-footer-links a:hover { color: #fff; transform: translateX(4px); }

.gs-footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, .1);
    padding-top: 1.25rem;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: .6rem;
    flex-wrap: wrap;
}
.gs-footer-bottom small { color: rgba(255, 255, 255, .5); font-size: .82rem; }
.gs-footer-place { letter-spacing: .02em; }

/* ----------------------------------------------------------------
   Ajax loader
   ---------------------------------------------------------------- */
#loading-ajax { text-align: center; padding: 1rem 0; }
#loading-ajax img { width: 46px; height: 46px; }

code#time-left {
    background: var(--gs-dark);
    color: var(--gs-yellow);
    padding: .1rem .45rem;
    border-radius: 6px;
    font-weight: 700;
}

/* ----------------------------------------------------------------
   Responsive / mobile-webview tuning
   ---------------------------------------------------------------- */
@media (min-width: 992px) {
    /* On desktop the contact aside carries the intro, so the hero is redundant. */
    .gs-hero { display: none; }
}

@media (max-width: 991.98px) {
    /* Below lg there isn't room for the two-column contact layout:
       hide the branded aside and let the form fill the card. */
    .gs-contact-aside { display: none; }
    .gs-contact-main { padding: 1.6rem 1.4rem 1.5rem; }
}

@media (max-width: 767.98px) {
    /* Compact hero so the form is the focus on phones */
    .gs-hero { padding: 1.5rem 0 2.4rem; }
    .gs-hero h1 { font-size: clamp(1.5rem, 7.5vw, 1.95rem); max-width: 100%; margin-bottom: 0; }
    .gs-hero-eyebrow { margin-bottom: .7rem; }
    .gs-hero p { display: none; }
    .gs-hero::after { display: none; }

    .gs-form-card { margin-top: 0; }
    .gs-form-card .gs-card-inner { padding: 1.3rem 1.1rem 1.4rem; }
    .gs-contact-main { padding: 1.3rem 1.1rem 1.4rem; }

    .gs-section { padding: 1.4rem 0 1.6rem; }

    /* full-width submit CTA on phones (reveal button stays inline in its input-group) */
    .gs-form-card .btn-primary { width: 100%; }

    /* Footer: stack columns, links remain a tidy two-up grid */
    .gs-footer { padding-top: 2rem; }
    .gs-footer-top { grid-template-columns: 1fr; gap: 1.6rem; }
    .gs-footer-bottom { justify-content: center; text-align: center; }
}

@media (max-width: 380px) {
    .gs-brand-text .gs-brand-main { font-size: .92rem; }
    .gs-navbar .navbar-brand img { height: 34px; }
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: .001ms !important;
        transition-duration: .001ms !important;
        scroll-behavior: auto !important;
    }
}