/* ==========================================================
   DTI ADMISSION LEAD COLLECTION
   DTI BRAND THEME
   Mobile-first • Minimal • Gen-Z • High Conversion
   ========================================================== */


/* ==========================================================
   DESIGN TOKENS
========================================================== */

:root {

    /* ------------------------------------------------------
       DTI BRAND COLORS
    ------------------------------------------------------ */

    --dti-navy: #003B73;
    --dti-blue: #0067A9;
    --dti-cyan: #00AEEF;

    /* ------------------------------------------------------
       DARK UI COLORS
    ------------------------------------------------------ */

    --dti-dark: #06111C;
    --dti-dark-2: #081521;
    --dti-card: #0B1926;
    --dti-card-2: #0E1E2D;

    /* ------------------------------------------------------
       TEXT
    ------------------------------------------------------ */

    --dti-white: #FFFFFF;
    --dti-text: #EAF2F8;
    --dti-muted: #91A5B7;
    --dti-muted-2: #65798A;

    /* ------------------------------------------------------
       BORDERS
    ------------------------------------------------------ */

    --dti-border:
        rgba(0, 174, 239, 0.16);

    --dti-border-light:
        rgba(255, 255, 255, 0.08);

    /* ------------------------------------------------------
       GRADIENTS
    ------------------------------------------------------ */

    --dti-gradient:
        linear-gradient(
            110deg,
            #003B73,
            #0067A9,
            #00AEEF
        );

    --dti-gradient-soft:
        linear-gradient(
            135deg,
            rgba(0, 59, 115, 0.28),
            rgba(0, 174, 239, 0.08)
        );

}


/* ==========================================================
   RESET
========================================================== */

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}


html {
    scroll-behavior: smooth;
}


body {

    min-height: 100vh;

    font-family:
        "Inter",
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;

    background:
        var(--dti-dark);

    color:
        var(--dti-text);

    -webkit-font-smoothing:
        antialiased;

    text-rendering:
        optimizeLegibility;

}


button,
input,
select {
    font: inherit;
}


button,
a {

    -webkit-tap-highlight-color:
        transparent;

}


button {
    cursor: pointer;
}


a {

    text-decoration:
        none;

    color:
        inherit;

}


img {

    max-width:
        100%;

}


/* ==========================================================
   PAGE
========================================================== */

.page {

    position:
        relative;

    min-height:
        100vh;

    overflow:
        hidden;

    background:
        var(--dti-dark);

}


/* ----------------------------------------------------------
   BACKGROUND GLOW — TOP RIGHT
---------------------------------------------------------- */

.page::before {

    content:
        "";

    position:
        fixed;

    width:
        320px;

    height:
        320px;

    top:
        -150px;

    right:
        -120px;

    border-radius:
        50%;

    background:
        rgba(0, 103, 169, 0.20);

    filter:
        blur(80px);

    pointer-events:
        none;

    z-index:
        0;

}


/* ----------------------------------------------------------
   BACKGROUND GLOW — BOTTOM LEFT
---------------------------------------------------------- */

.page::after {

    content:
        "";

    position:
        fixed;

    width:
        280px;

    height:
        280px;

    bottom:
        -140px;

    left:
        -120px;

    border-radius:
        50%;

    background:
        rgba(0, 174, 239, 0.11);

    filter:
        blur(90px);

    pointer-events:
        none;

    z-index:
        0;

}


/* ==========================================================
   HEADER
========================================================== */

.site-header {

    position:
        relative;

    z-index:
        20;

    width:
        100%;

    padding:
        18px 24px;

    border-bottom:
        1px solid
        var(--dti-border-light);

    background:
        rgba(6, 17, 28, 0.90);

    backdrop-filter:
        blur(18px);

    -webkit-backdrop-filter:
        blur(18px);

}


.header-inner {

    width:
        100%;

    max-width:
        1180px;

    min-height:
        64px;

    margin:
        0 auto;

    display:
        flex;

    align-items:
        center;

    justify-content:
        space-between;

    gap:
        20px;

}


/* ==========================================================
   BRAND
========================================================== */

.brand {

    display:
        flex;

    align-items:
        center;

    gap:
        14px;

    min-width:
        0;

    color:
        var(--dti-white);

}


.brand-logo {

    width:
        54px;

    height:
        54px;

    flex-shrink:
        0;

    display:
        flex;

    align-items:
        center;

    justify-content:
        center;

    padding:
        5px;

    border-radius:
        14px;

    background:
        #ffffff;

    box-shadow:
        0 8px 28px
        rgba(0, 0, 0, 0.30);

    overflow:
        hidden;

}


.brand-logo img {

    width:
        100%;

    height:
        100%;

    display:
        block;

    object-fit:
        contain;

}


.brand-text {

    min-width:
        0;

}


.brand-text strong {

    display:
        block;

    color:
        var(--dti-white);

    font-size:
        16px;

    font-weight:
        800;

    line-height:
        1.2;

    letter-spacing:
        -0.025em;

}


.brand-text span {

    display:
        block;

    margin-top:
        5px;

    color:
        var(--dti-muted);

    font-size:
        10px;

    font-weight:
        700;

    letter-spacing:
        0.10em;

    text-transform:
        uppercase;

}


/* ==========================================================
   HEADER BADGE
========================================================== */

.header-badge {

    flex-shrink:
        0;

    padding:
        8px 13px;

    border:
        1px solid
        rgba(0, 174, 239, 0.24);

    border-radius:
        999px;

    color:
        #6DD9FF;

    background:
        rgba(0, 103, 169, 0.10);

    font-size:
        9px;

    font-weight:
        800;

    letter-spacing:
        0.12em;

}


/* ==========================================================
   MAIN CONTAINERS
========================================================== */

.form-container,
.review-container {

    position:
        relative;

    z-index:
        2;

    width:
        min(
            calc(100% - 32px),
            620px
        );

    margin:
        28px auto 55px;

}


.form-container {

    max-width:
        620px;

}


.review-container {

    max-width:
        620px;

}


/* ==========================================================
   STEP INDICATOR
========================================================== */

.step-indicator {

    display:
        flex;

    align-items:
        center;

    width:
        100%;

    margin-bottom:
        34px;

}


.step-indicator span {

    width:
        35px;

    height:
        35px;

    display:
        grid;

    place-items:
        center;

    flex-shrink:
        0;

    border:
        1px solid
        rgba(255, 255, 255, 0.10);

    border-radius:
        50%;

    color:
        var(--dti-muted-2);

    background:
        var(--dti-card);

    font-size:
        10px;

    font-weight:
        800;

}


.step-indicator span.active {

    border-color:
        transparent;

    color:
        #ffffff;

    background:
        var(--dti-gradient);

    box-shadow:
        0 7px 25px
        rgba(0, 103, 169, 0.28);

}


.step-indicator span.completed {

    color:
        #ffffff;

    border-color:
        var(--dti-blue);

    background:
        rgba(0, 103, 169, 0.20);

}


.step-indicator div {

    flex:
        1;

    height:
        1px;

    margin:
        0 10px;

    background:
        rgba(255, 255, 255, 0.08);

}


.step-indicator .active-line {

    background:
        linear-gradient(
            90deg,
            var(--dti-navy),
            var(--dti-cyan)
        );

}


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

.hero-copy {

    margin-bottom:
        32px;

}


.eyebrow {

    display:
        inline-block;

    margin-bottom:
        13px;

    color:
        #45C8F4;

    font-size:
        10px;

    font-weight:
        800;

    letter-spacing:
        0.16em;

}


.hero-copy h1 {

    max-width:
        550px;

    color:
        var(--dti-white);

    font-size:
        clamp(
            38px,
            11vw,
            64px
        );

    line-height:
        0.98;

    letter-spacing:
        -0.065em;

    font-weight:
        800;

}


.hero-copy h1 span {

    background:
        linear-gradient(
            90deg,
            #168AC5,
            #00AEEF
        );

    -webkit-background-clip:
        text;

    background-clip:
        text;

    color:
        transparent;

}


.hero-copy p {

    max-width:
        510px;

    margin-top:
        17px;

    color:
        var(--dti-muted);

    font-size:
        14px;

    line-height:
        1.75;

}


/* ==========================================================
   ADMISSION HELP CARD
========================================================== */

.admission-help {

    margin-bottom:
        30px;

    padding:
        22px;

    border:
        1px solid
        rgba(0, 174, 239, 0.20);

    border-radius:
        22px;

    background:
        var(--dti-gradient-soft);

    box-shadow:
        inset 0 1px 0
        rgba(255, 255, 255, 0.03);

}


.help-content {

    margin-bottom:
        20px;

}


.help-eyebrow {

    display:
        inline-block;

    margin-bottom:
        9px;

    color:
        #45C8F4;

    font-size:
        9px;

    font-weight:
        800;

    letter-spacing:
        0.15em;

}


.help-content h2 {

    max-width:
        470px;

    color:
        var(--dti-white);

    font-size:
        24px;

    line-height:
        1.15;

    letter-spacing:
        -0.045em;

}


.help-content h2 span {

    color:
        #35C4F0;

}


.help-content p {

    max-width:
        510px;

    margin-top:
        10px;

    color:
        var(--dti-muted);

    font-size:
        12px;

    line-height:
        1.7;

}


.help-contact-label {

    margin-bottom:
        10px;

    color:
        var(--dti-muted-2);

    font-size:
        9px;

    font-weight:
        800;

    letter-spacing:
        0.11em;

    text-transform:
        uppercase;

}


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

.admission-help .help-buttons {

    display:
        grid;

    grid-template-columns:
        1fr 1fr;

    gap:
        9px;

    margin-top:
        0;

}


.help-call {

    min-height:
        58px;

    padding:
        8px 10px;

    display:
        flex;

    align-items:
        center;

    gap:
        10px;

    border:
        1px solid
        rgba(0, 174, 239, 0.14);

    border-radius:
        14px;

    background:
        rgba(4, 14, 23, 0.65);

    transition:
        transform .18s ease,
        border-color .18s ease,
        background .18s ease;

}


.help-call:hover {

    border-color:
        rgba(0, 174, 239, 0.45);

    background:
        rgba(0, 103, 169, 0.12);

}


.help-call:active {

    transform:
        scale(0.97);

}


.call-icon {

    width:
        36px;

    height:
        36px;

    flex-shrink:
        0;

    display:
        grid;

    place-items:
        center;

    border-radius:
        10px;

    color:
        #ffffff;

    background:
        var(--dti-gradient);

    font-size:
        15px;

    box-shadow:
        0 6px 18px
        rgba(0, 103, 169, 0.25);

}


.call-info {

    min-width:
        0;

}


.call-info small {

    display:
        block;

    margin-bottom:
        3px;

    color:
        var(--dti-muted-2);

    font-size:
        8px;

    font-weight:
        700;

}


.call-info strong {

    display:
        block;

    color:
        #EAF7FC;

    font-size:
        10px;

    font-weight:
        700;

    white-space:
        nowrap;

}


/* ==========================================================
   FORM FIELDS
========================================================== */

.field {

    margin-bottom:
        21px;

}


.field label {

    display:
        block;

    margin-bottom:
        9px;

    color:
        #D7E3EC;

    font-size:
        13px;

    font-weight:
        600;

}


.field input,
.field select {

    width:
        100%;

    min-height:
        54px;

    padding:
        0 16px;

    border:
        1px solid
        rgba(0, 174, 239, 0.15);

    border-radius:
        15px;

    outline:
        none;

    color:
        #ffffff;

    background:
        var(--dti-card);

    font-size:
        16px;

    transition:
        border-color .2s ease,
        box-shadow .2s ease,
        background .2s ease;

}


.field input::placeholder {

    color:
        #5F7384;

}


.field input:focus,
.field select:focus {

    border-color:
        var(--dti-cyan);

    background:
        var(--dti-card-2);

    box-shadow:
        0 0 0 4px
        rgba(0, 174, 239, 0.09);

}


/* ==========================================================
   SELECT
========================================================== */

.field select {

    padding-right:
        45px;

    appearance:
        none;

    -webkit-appearance:
        none;

    background-image:
        linear-gradient(
            45deg,
            transparent 50%,
            #73CFEF 50%
        ),
        linear-gradient(
            135deg,
            #73CFEF 50%,
            transparent 50%
        );

    background-position:
        calc(100% - 20px) 23px,
        calc(100% - 14px) 23px;

    background-size:
        6px 6px,
        6px 6px;

    background-repeat:
        no-repeat;

}


.field select option {

    color:
        #ffffff;

    background:
        #0B1926;

}


/* ==========================================================
   FIELD HEADING
========================================================== */

.field-heading {

    display:
        flex;

    align-items:
        center;

    justify-content:
        space-between;

    gap:
        10px;

}


.field-heading span {

    color:
        var(--dti-muted-2);

    font-size:
        10px;

}


/* ==========================================================
   ACADEMIC SECTION
========================================================== */

.section-label {

    display:
        flex;

    align-items:
        center;

    gap:
        12px;

    margin:
        35px 0 20px;

}


.section-label::after {

    content:
        "";

    flex:
        1;

    height:
        1px;

    background:
        rgba(255, 255, 255, 0.08);

}


.section-label span {

    color:
        #668094;

    font-size:
        10px;

    font-weight:
        800;

    letter-spacing:
        0.14em;

}


.two-column {

    display:
        grid;

    grid-template-columns:
        1fr 1fr;

    gap:
        12px;

}


/* ==========================================================
   FORM ERRORS
========================================================== */

.field-error {

    display:
        block;

    height:
        0;

    margin-top:
        0;

    overflow:
        hidden;

    color:
        #FF7185;

    font-size:
        11px;

    line-height:
        1.4;

}


.field-error.visible {

    height:
        auto;

    margin-top:
        7px;

}


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

.primary-button {

    width:
        100%;

    min-height:
        57px;

    margin-top:
        7px;

    padding:
        0 18px;

    display:
        flex;

    align-items:
        center;

    justify-content:
        space-between;

    border:
        0;

    border-radius:
        16px;

    color:
        #ffffff;

    background:
        var(--dti-gradient);

    box-shadow:
        0 15px 35px
        rgba(0, 103, 169, 0.28);

    font-size:
        14px;

    font-weight:
        800;

    transition:
        transform .18s ease,
        opacity .18s ease,
        box-shadow .18s ease;

}


.primary-button strong {

    font-size:
        22px;

    font-weight:
        500;

}


.primary-button:hover {

    box-shadow:
        0 18px 42px
        rgba(0, 174, 239, 0.22);

}


.primary-button:active {

    transform:
        scale(0.98);

}


.primary-button:disabled {

    opacity:
        0.55;

    cursor:
        not-allowed;

}


/* ==========================================================
   FOOTER
========================================================== */

.page-footer {

    margin-top:
        35px;

    padding:
        0 0 25px;

    color:
        #526777;

    text-align:
        center;

    font-size:
        10px;

}


/* ==========================================================
   REVIEW PAGE
========================================================== */

.review-heading {

    margin-bottom:
        25px;

}


.review-card {

    overflow:
        hidden;

    border:
        1px solid
        rgba(0, 174, 239, 0.14);

    border-radius:
        20px;

    background:
        rgba(11, 25, 38, 0.90);

    box-shadow:
        0 20px 60px
        rgba(0, 0, 0, 0.16);

}


.review-section {

    padding:
        20px;

    border-bottom:
        1px solid
        rgba(255, 255, 255, 0.06);

}


.review-section:last-child {

    border-bottom:
        0;

}


.review-section-title {

    margin-bottom:
        14px;

    color:
        #668094;

    font-size:
        9px;

    font-weight:
        800;

    letter-spacing:
        0.14em;

}


.review-item {

    display:
        flex;

    align-items:
        center;

    justify-content:
        space-between;

    gap:
        15px;

    padding:
        9px 0;

}


.review-item span {

    color:
        #718596;

    font-size:
        11px;

}


.review-item strong {

    max-width:
        60%;

    color:
        #EDF7FC;

    font-size:
        12px;

    text-align:
        right;

    overflow-wrap:
        anywhere;

}


/* ==========================================================
   TECHNOLOGY REVIEW
========================================================== */

.technology-review {

    padding:
        17px;

    border:
        1px solid
        rgba(0, 174, 239, 0.12);

    border-radius:
        15px;

    background:
        linear-gradient(
            135deg,
            rgba(0, 59, 115, 0.28),
            rgba(0, 174, 239, 0.07)
        );

}


.tech-label {

    display:
        block;

    margin-bottom:
        7px;

    color:
        #718596;

    font-size:
        9px;

    font-weight:
        700;

}


.technology-review strong {

    display:
        block;

    color:
        #ffffff;

    font-size:
        20px;

    letter-spacing:
        -0.03em;

}


/* ==========================================================
   ACADEMIC REVIEW
========================================================== */

.academic-review {

    display:
        grid;

    grid-template-columns:
        repeat(3, 1fr);

    gap:
        10px;

}


.academic-review div {

    padding:
        13px 10px;

    border:
        1px solid
        rgba(0, 174, 239, 0.10);

    border-radius:
        12px;

    background:
        #0B1926;

}


.academic-review span {

    display:
        block;

    margin-bottom:
        6px;

    color:
        #607587;

    font-size:
        9px;

}


.academic-review strong {

    display:
        block;

    color:
        #ffffff;

    font-size:
        13px;

}


/* ==========================================================
   REVIEW ACTIONS
========================================================== */

.review-actions {

    display:
        grid;

    gap:
        10px;

    margin-top:
        18px;

}


.secondary-button {

    width:
        100%;

    min-height:
        52px;

    border:
        1px solid
        rgba(0, 174, 239, 0.12);

    border-radius:
        15px;

    color:
        #A9BBC9;

    background:
        #0B1926;

    font-size:
        12px;

    font-weight:
        700;

    transition:
        border-color .2s ease,
        background .2s ease;

}


.secondary-button:hover {

    border-color:
        rgba(0, 174, 239, 0.35);

    background:
        #0E1E2D;

}


/* ==========================================================
   SUBMISSION ERROR
========================================================== */

.submission-error {

    margin-top:
        12px;

    padding:
        14px;

    border:
        1px solid
        rgba(255, 113, 133, 0.25);

    border-radius:
        13px;

    background:
        rgba(255, 113, 133, 0.07);

}


.submission-error strong {

    display:
        block;

    margin-bottom:
        4px;

    color:
        #FF7185;

    font-size:
        12px;

}


.submission-error span {

    color:
        #A6B4BF;

    font-size:
        11px;

}


/* ==========================================================
   SUBMISSION OVERLAY
========================================================== */

.submit-overlay {

    position:
        fixed;

    inset:
        0;

    z-index:
        100;

    display:
        grid;

    place-items:
        center;

    padding:
        20px;

    background:
        rgba(2, 10, 17, 0.84);

    backdrop-filter:
        blur(12px);

    -webkit-backdrop-filter:
        blur(12px);

    opacity:
        0;

    visibility:
        hidden;

    transition:
        opacity .2s ease,
        visibility .2s ease;

}


.submit-overlay.show {

    opacity:
        1;

    visibility:
        visible;

}


.submit-loader {

    width:
        min(100%, 320px);

    padding:
        28px 22px;

    display:
        flex;

    flex-direction:
        column;

    align-items:
        center;

    text-align:
        center;

    border:
        1px solid
        rgba(0, 174, 239, 0.18);

    border-radius:
        20px;

    background:
        #0B1926;

}


.spinner {

    width:
        34px;

    height:
        34px;

    margin-bottom:
        17px;

    border:
        3px solid
        rgba(0, 174, 239, 0.12);

    border-top-color:
        var(--dti-blue);

    border-right-color:
        var(--dti-cyan);

    border-radius:
        50%;

    animation:
        spin .8s linear infinite;

}


@keyframes spin {

    to {

        transform:
            rotate(360deg);

    }

}


.submit-loader strong {

    color:
        #ffffff;

    font-size:
        14px;

}


.submit-loader span {

    margin-top:
        7px;

    color:
        #718596;

    font-size:
        10px;

}


/* ==========================================================
   SUCCESS PAGE
========================================================== */

.success-page {

    min-height:
        100vh;

    padding:
        20px;

    display:
        grid;

    place-items:
        center;

    background:
        var(--dti-dark);

}


.success-card {

    width:
        min(100%, 450px);

    padding:
        32px 22px;

    text-align:
        center;

    border:
        1px solid
        rgba(0, 174, 239, 0.16);

    border-radius:
        24px;

    background:
        var(--dti-card);

}


.success-icon {

    width:
        68px;

    height:
        68px;

    margin:
        0 auto 22px;

    display:
        grid;

    place-items:
        center;

    border-radius:
        50%;

    color:
        #ffffff;

    background:
        var(--dti-gradient);

    font-size:
        28px;

    font-weight:
        800;

    box-shadow:
        0 15px 45px
        rgba(0, 103, 169, 0.28);

}


.success-card h1 {

    margin-bottom:
        12px;

    color:
        #ffffff;

    font-size:
        36px;

    letter-spacing:
        -0.05em;

}


.success-card p {

    color:
        var(--dti-muted);

    font-size:
        13px;

    line-height:
        1.7;

}


.lead-id {

    margin:
        22px 0;

    padding:
        14px;

    border:
        1px solid
        rgba(0, 174, 239, 0.10);

    border-radius:
        13px;

    background:
        #081521;

}


.lead-id span {

    display:
        block;

    margin-bottom:
        6px;

    color:
        #607587;

    font-size:
        9px;

    text-transform:
        uppercase;

    letter-spacing:
        0.12em;

}


.lead-id strong {

    color:
        #53D1F5;

    font-size:
        15px;

}


.success-actions {

    display:
        grid;

    gap:
        9px;

}


.call-button {

    min-height:
        52px;

    display:
        flex;

    align-items:
        center;

    justify-content:
        center;

    border-radius:
        15px;

    color:
        #ffffff;

    background:
        var(--dti-gradient);

    font-size:
        13px;

    font-weight:
        800;

}


/* ==========================================================
   DESKTOP
========================================================== */

@media (min-width: 700px) {

    .site-header {

        padding:
            24px 32px;

    }


    .form-container,
    .review-container {

        margin-top:
            40px;

    }


    .review-actions {

        grid-template-columns:
            1fr 1.4fr;

    }


    .review-actions
    .primary-button {

        margin:
            0;

    }

}


/* ==========================================================
   MOBILE
========================================================== */

@media (max-width: 600px) {

    .site-header {

        padding:
            15px 16px;

    }


    .header-inner {

        min-height:
            58px;

    }


    .brand {

        gap:
            11px;

    }


    .brand-logo {

        width:
            48px;

        height:
            48px;

        border-radius:
            13px;

    }


    .brand-text strong {

        font-size:
            13px;

    }


    .brand-text span {

        margin-top:
            3px;

        font-size:
            9px;

    }


    .header-badge {

        display:
            none;

    }


    .form-container,
    .review-container {

        width:
            calc(100% - 28px);

        margin-top:
            24px;

    }


    .admission-help {

        padding:
            19px;

    }


    .help-content h2 {

        font-size:
            22px;

    }


    .admission-help .help-buttons {

        grid-template-columns:
            1fr;

    }


    .help-call {

        min-height:
            54px;

    }


    .call-info strong {

        font-size:
            11px;

    }

}


/* ==========================================================
   SMALL PHONES
========================================================== */

@media (max-width: 380px) {

    .site-header {

        padding-left:
            13px;

        padding-right:
            13px;

    }


    .brand-logo {

        width:
            45px;

        height:
            45px;

    }


    .brand-text strong {

        font-size:
            12px;

    }


    .form-container,
    .review-container {

        width:
            calc(100% - 24px);

    }


    .hero-copy h1 {

        font-size:
            36px;

    }


    .two-column {

        grid-template-columns:
            1fr;

    }


    .academic-review {

        grid-template-columns:
            1fr;

    }


    .department-grid {

        grid-template-columns:
            1fr;

    }

}


/* ==========================================================
   REDUCED MOTION
========================================================== */

@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {

        scroll-behavior:
            auto !important;

        animation-duration:
            0.01ms !important;

        animation-iteration-count:
            1 !important;

        transition-duration:
            0.01ms !important;

    }

}