/* =========================================
   NUTE NHẬP HỌC 2026
   ========================================= */

:root {

    --navy: #062b72;
    --blue: #0757b8;
    --blue-light: #1687e8;

    --yellow: #ffd21c;
    --yellow-light: #fff2a6;

    --red: #e5222e;

    --white: #ffffff;
    --text: #183153;
    --gray: #66758a;

    --background: #f5f8fc;

    --shadow:
        0 20px 50px rgba(6, 43, 114, .15);

    --radius: 22px;

}


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


html {
    scroll-behavior: smooth;
}


body {

    font-family:
        "Segoe UI",
        Arial,
        sans-serif;

    color: var(--text);

    background:
        var(--background);

    line-height: 1.6;

}


a {
    text-decoration: none;
}


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

.site-header {

    position: absolute;

    top: 0;
    left: 0;

    width: 100%;

    z-index: 20;

    background:
        linear-gradient(
            to bottom,
            rgba(3, 25, 70, .75),
            transparent
        );

}


.header-inner {

    width: min(1400px, 92%);

    margin: auto;

    padding: 22px 0;

    display: flex;

    justify-content: space-between;

    align-items: center;

}


.brand {

    display: flex;

    align-items: center;

    gap: 14px;

    color: white;

}


.brand img {

    width: 70px;
    height: 70px;

    object-fit: contain;

}


.brand-text {

    display: flex;

    flex-direction: column;

}


.brand-text strong {

    font-size: 15px;

    letter-spacing: 1px;

}


.brand-text span {

    font-size: 20px;

    font-weight: 800;

}


.header-contact {

    display: flex;

    align-items: center;

    gap: 12px;

    color: white;

}


.header-contact > span {

    width: 45px;
    height: 45px;

    border-radius: 50%;

    display: grid;
    place-items: center;

    background: var(--yellow);

    color: var(--navy);

    font-size: 22px;

}


.header-contact small {

    display: block;

    font-size: 10px;

    opacity: .8;

}


.header-contact strong {

    font-size: 16px;

}


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

.hero {

    min-height: 760px;

    position: relative;

    display: flex;

    align-items: center;

    overflow: hidden;

    background-image:

        url("/images/campus-nute.jpg");

    background-size: cover;

    background-position: center;

}


.hero-overlay {

    position: absolute;

    inset: 0;

    background:

        linear-gradient(
            90deg,
            rgba(3, 25, 70, .95) 0%,
            rgba(4, 43, 104, .82) 40%,
            rgba(3, 35, 85, .35) 75%,
            rgba(3, 25, 70, .15) 100%
        );

}


.hero-content {

    position: relative;

    z-index: 2;

    width: min(1400px, 92%);

    margin: auto;

    padding-top: 100px;

}


.welcome-badge {

    display: inline-flex;

    align-items: center;

    gap: 10px;

    padding: 9px 18px;

    border-radius: 100px;

    background:
        rgba(255, 210, 28, .16);

    border:
        1px solid rgba(255, 210, 28, .6);

    color: var(--yellow);

    font-weight: 700;

    font-size: 14px;

    backdrop-filter: blur(8px);

}


.hero h1 {

    margin-top: 24px;

    color: white;

    font-size:
        clamp(32px, 5.5vw, 58px);

    line-height: 1.05;

    font-weight: 700;

    letter-spacing: -2px;

    max-width: 1200px;

}


.hero h1 span {

    color: var(--yellow);

    text-shadow:
        0 5px 20px rgba(255, 210, 28, .25);

}


.hero-description {

    margin-top: 25px;

    max-width: 1200px;

    color:
        rgba(255,255,255,.9);

    font-size: 19px;

}


.hero-description strong {

    color: var(--yellow);

}


/* =========================================
   COUNTDOWN
   ========================================= */

.countdown-card {

    margin-top: 35px;

    width: min(760px, 100%);

    padding: 22px 28px;

    background:
        rgba(255,255,255,.13);

    border:
        1px solid rgba(255,255,255,.25);

    border-radius: var(--radius);

    backdrop-filter: blur(18px);

    box-shadow:
        0 20px 60px rgba(0,0,0,.2);

}


.countdown-title {

    color: white;

    font-size: 13px;

    font-weight: 700;

    letter-spacing: 1.5px;

    text-align: center;

    margin-bottom: 14px;

}


.countdown {

    display: flex;

    justify-content: center;

    align-items: center;

    gap: 12px;

}


.time-box {

    width: 115px;

    text-align: center;

}


.time-box strong {

    display: block;

    color: white;

    font-size: 52px;

    line-height: 1;

    font-weight: 900;

    font-variant-numeric:
        tabular-nums;

}


.time-box span {

    display: block;

    margin-top: 7px;

    color: var(--yellow);

    font-size: 11px;

    font-weight: 800;

    letter-spacing: 1px;

}


.time-separator {

    color: var(--yellow);

    font-size: 42px;

    font-weight: 900;

    margin-top: -12px;

}


.countdown-date {

    margin-top: 15px;

    padding-top: 14px;

    border-top:
        1px solid rgba(255,255,255,.2);

    text-align: center;

    color:
        rgba(255,255,255,.85);

    font-size: 14px;

}


.countdown-date strong {

    color: white;

}


/* =========================================
   BUTTON
   ========================================= */

.hero-buttons {

    display: flex;

    flex-wrap: wrap;

    gap: 14px;

    margin-top: 25px;

}


.btn {

    display: inline-flex;

    align-items: center;

    justify-content: center;

    gap: 8px;

    min-height: 52px;

    padding: 0 25px;

    border-radius: 12px;

    font-weight: 800;

    transition: .25s;

}


.btn:hover {

    transform: translateY(-3px);

}


.btn-primary {

    color: var(--navy);

    background: var(--yellow);

    box-shadow:
        0 10px 30px rgba(255,210,28,.3);

}


.btn-primary:hover {

    background: #ffe45e;

}


.btn-outline {

    color: white;

    border:
        1px solid rgba(255,255,255,.65);

    background:
        rgba(255,255,255,.08);

}


.btn-outline:hover {

    background: white;

    color: var(--navy);

}


/* =========================================
   WELCOME SECTION
   ========================================= */

.welcome-section {

    padding: 90px 0;

    background: white;

}


.section-container {

    width: min(1200px, 92%);

    margin: auto;

}


.section-heading {

    text-align: center;

    margin-bottom: 50px;

}


.section-label {

    color: var(--blue);

    font-weight: 900;

    font-size: 12px;

    letter-spacing: 2px;

}


.section-heading h2 {

    margin-top: 8px;

    color: var(--navy);

    font-size:
        clamp(30px, 4vw, 46px);

    line-height: 1.15;

}


.section-heading h2 span {

    color: var(--blue);

}


.section-heading p {

    color: var(--gray);

    margin-top: 10px;

}


.welcome-grid {

    display: grid;

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

    gap: 24px;

}


.welcome-card {

    padding: 35px;

    background: white;

    border-radius: var(--radius);

    border:
        1px solid #e6edf6;

    box-shadow: var(--shadow);

    transition: .3s;

}


.welcome-card:hover {

    transform:
        translateY(-8px);

}


.welcome-card.highlight {

    background:
        linear-gradient(
            135deg,
            var(--navy),
            var(--blue)
        );

    color: white;

}


.welcome-card.highlight p {

    color:
        rgba(255,255,255,.75);

}


.welcome-icon {

    width: 60px;
    height: 60px;

    display: grid;
    place-items: center;

    border-radius: 18px;

    background:
        #eef5ff;

    font-size: 27px;

    margin-bottom: 20px;

}


.welcome-card h3 {

    font-size: 21px;

    margin-bottom: 10px;

}


.welcome-card p {

    color: var(--gray);

}


/* =========================================
   TIMELINE
   ========================================= */

.timeline-section {

    padding: 100px 0;

    background:

        radial-gradient(
            circle at 20% 20%,
            rgba(22,135,232,.25),
            transparent 35%
        ),

        linear-gradient(
            135deg,
            #031d4f,
            #0757b8
        );

}


.section-heading.light h2 {

    color: white;

}

.section-heading.light h2 span {

    color: #ffd21f;
}

.section-heading.light p {

    color:
        rgba(255,255,255,.7);

}


.timeline {

    max-width: 900px;

    margin: auto;

    position: relative;

}


.timeline::before {

    content: "";

    position: absolute;

    left: 35px;

    top: 20px;

    bottom: 20px;

    width: 2px;

    background:
        rgba(255,255,255,.2);

}


.timeline-item {

    position: relative;

    display: flex;

    gap: 25px;

    padding: 18px 0;

}


.timeline-number {

    position: relative;

    z-index: 2;

    flex:
        0 0 70px;

    width: 70px;
    height: 70px;

    display: grid;

    place-items: center;

    border-radius: 50%;

    background:
        rgba(255,255,255,.1);

    border:
        1px solid rgba(255,255,255,.25);

    color: white;

    font-weight: 900;

}


.timeline-item.active
.timeline-number {

    background: var(--yellow);

    color: var(--navy);

    border-color: var(--yellow);

    box-shadow:
        0 0 0 8px rgba(255,210,28,.12);

}


.timeline-content {

    flex: 1;

    padding: 20px 25px;

    border-radius: 18px;

    background:
        rgba(255,255,255,.08);

    border:
        1px solid rgba(255,255,255,.12);

}


.timeline-item.active
.timeline-content {

    background:
        rgba(255,255,255,.14);

    border-color:
        rgba(255,210,28,.4);

}


.timeline-date {

    color: var(--yellow);

    font-weight: 900;

    font-size: 13px;

}


.timeline-content h3 {

    color: white;

    font-size: 21px;

    margin: 5px 0;

}


.timeline-content p {

    color:
        rgba(255,255,255,.7);

}


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

.cta-section {

    padding: 70px 0;

    background:
        var(--yellow);

}


.cta-container {

    width: min(1100px, 92%);

    margin: auto;

    display: flex;

    align-items: center;

    justify-content: space-between;

    gap: 30px;

}


.cta-content span {

    font-size: 12px;

    font-weight: 900;

    letter-spacing: 2px;

    color: var(--navy);

}


.cta-content h2 {

    margin-top: 5px;

    color: var(--navy);

    font-size: 38px;

}


.cta-content h2 strong {

    color: var(--red);

}


.cta-content p {

    max-width: 650px;

    color:
        rgba(6,43,114,.75);

}


.cta-actions {

    display: flex;

    gap: 10px;

    flex-wrap: wrap;

}


.btn-white {

    color: var(--navy);

    background: white;

}


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

.footer {

    color:
        rgba(255,255,255,.8);

    background:
        #021b42;

}


.footer-inner {

    width: min(1200px, 92%);

    margin: auto;

    padding: 45px 0;

    display: flex;

    justify-content: space-between;

    gap: 30px;

}


.footer strong {

    color: white;

}


.footer p {

    color: var(--yellow);

}


.footer-info {

    display: flex;

    flex-direction: column;

    gap: 7px;

    font-size: 14px;

}


.footer-info a {

    color: var(--yellow);

}


.copyright {

    text-align: center;

    padding: 15px;

    border-top:
        1px solid rgba(255,255,255,.1);

    font-size: 12px;

}


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

@media (max-width: 900px) {

    .hero {

        min-height: 850px;

    }


    .header-contact {

        display: none;

    }


    .welcome-grid {

        grid-template-columns: 1fr;

    }


    .cta-container {

        flex-direction: column;

        text-align: center;

    }


    .cta-actions {

        justify-content: center;

    }

}


@media (max-width: 650px) {

    .brand img {

        width: 52px;
        height: 52px;

    }


    .brand-text strong {

        font-size: 10px;

    }


    .brand-text span {

        font-size: 14px;

    }


    .hero {

        min-height: 820px;

        background-position:
            65% center;

    }


    .hero-content {

        padding-top: 120px;

    }


    .hero h1 {

        font-size: 40px;

        letter-spacing: -1px;

    }


    .hero-description {

        font-size: 16px;

    }


    .countdown-card {

        padding: 18px 10px;

    }


    .countdown {

        gap: 4px;

    }


    .time-box {

        width: 65px;

    }


    .time-box strong {

        font-size: 32px;

    }


    .time-box span {

        font-size: 9px;

    }


    .time-separator {

        font-size: 25px;

    }


    .countdown-date {

        font-size: 11px;

    }


    .hero-buttons {

        flex-direction: column;

    }


    .btn {

        width: 100%;

    }


    .timeline::before {

        left: 25px;

    }


    .timeline-number {

        flex-basis: 52px;

        width: 52px;
        height: 52px;

        font-size: 12px;

    }


    .timeline-item {

        gap: 15px;

    }


    .timeline-content {

        padding: 15px;

    }


    .timeline-content h3 {

        font-size: 17px;

    }


    .footer-inner {

        flex-direction: column;

    }

}

.countdown-open {

    display: flex;

    flex-direction: column;

    align-items: center;

    justify-content: center;

    min-height: 130px;

    color: white;

    text-align: center;

}


.countdown-open strong {

    margin-top: 5px;

    color: var(--yellow);

    font-size:
        clamp(25px, 4vw, 42px);

    font-weight: 900;

}


.countdown-open span {

    margin-top: 5px;

    color:
        rgba(255,255,255,.8);

}

.hero {
    background-image:
        url("/images/campus-nute.jpg");
}

/* =========================================================
   QUICK INFO
========================================================= */

.quick-info {

    position: relative;

    z-index: 5;

    margin-top: -45px;

}


.quick-info-container {

    width: min(1200px, 92%);

    margin: auto;

    display: grid;

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

    background: white;

    border-radius: 20px;

    box-shadow:
        0 20px 50px rgba(0,0,0,.15);

    overflow: hidden;

}


.quick-item {

    padding: 24px;

    display: flex;

    align-items: center;

    gap: 15px;

    border-right:
        1px solid #e7edf5;

}


.quick-item:last-child {

    border-right: none;

}


.quick-icon {

    width: 52px;
    height: 52px;

    flex-shrink: 0;

    display: grid;

    place-items: center;

    border-radius: 15px;

    background: #edf5ff;

    font-size: 24px;

}


.quick-item strong {

    display: block;

    color: var(--navy);

    font-size: 13px;

}


.quick-item span:not(.quick-icon) {

    display: block;

    color: var(--gray);

    font-size: 12px;

}



/* =========================================================
   PROCESS
========================================================= */

.process-section {

    padding: 100px 0;

    background:
        #f7faff;

}


.process-progress {

    max-width: 1000px;

    margin: 0 auto 60px;

    display: flex;

    justify-content: space-between;

    position: relative;

}


.progress-line {

    position: absolute;

    top: 28px;

    left: 10%;

    right: 10%;

    height: 3px;

    background:
        #dce7f5;

    z-index: 0;

}


.progress-item {

    position: relative;

    z-index: 2;

    width: 25%;

    text-align: center;

}


.progress-circle {

    width: 56px;
    height: 56px;

    margin: auto;

    display: grid;

    place-items: center;

    border-radius: 50%;

    background: white;

    border:
        3px solid #dce7f5;

    color: var(--navy);

    font-weight: 900;

    box-shadow:
        0 5px 20px rgba(0,0,0,.08);

}


.progress-item strong {

    display: block;

    margin-top: 12px;

    font-size: 12px;

    color: var(--navy);

}


.progress-item:nth-child(-n+2)
.progress-circle {

    border-color:
        var(--yellow);

    background:
        var(--yellow);

}


.process-grid {

    display: grid;

    grid-template-columns:
        repeat(4, 1fr);

    gap: 20px;

}


.process-card {

    position: relative;

    padding: 30px 25px;

    background: white;

    border-radius: 20px;

    border:
        1px solid #e3eaf4;

    box-shadow:
        0 12px 35px rgba(20,55,100,.08);

    transition: .3s;

}


.process-card:hover {

    transform:
        translateY(-8px);

    box-shadow:
        0 20px 45px rgba(20,55,100,.14);

}


.process-card.active {

    border:
        2px solid var(--blue);

}


.process-number {

    position: absolute;

    top: 18px;
    right: 18px;

    color:
        #e1e9f4;

    font-size: 34px;

    font-weight: 900;

}


.process-icon {

    width: 58px;
    height: 58px;

    display: grid;

    place-items: center;

    margin-bottom: 18px;

    border-radius: 16px;

    background:
        #edf5ff;

    font-size: 25px;

}


.process-card h3 {

    color: var(--navy);

    font-size: 19px;

    margin-bottom: 10px;

}


.process-card p {

    color: var(--gray);

    font-size: 14px;

    min-height: 95px;

}


.process-card a {

    display: inline-block;

    margin-top: 15px;

    color: var(--blue);

    font-weight: 800;

    font-size: 13px;

}


.process-deadline {

    display: inline-block;

    margin-top: 15px;

    padding: 6px 10px;

    border-radius: 8px;

    background:
        #fff7cc;

    color:
        #806500;

    font-size: 11px;

    font-weight: 800;

}



/* =========================================================
   COUNTDOWN STATUS
========================================================= */

.status-dot {

    width: 9px;
    height: 9px;

    border-radius: 50%;

    background: var(--yellow);

    box-shadow:
        0 0 0 5px
        rgba(255,210,28,.15);

    animation:
        pulse 1.5s infinite;

}


.countdown-status {

    display: flex;

    justify-content: center;

    align-items: center;

    gap: 10px;

    color: white;

    font-size: 12px;

    font-weight: 800;

    letter-spacing: 1px;

}


.big-status-icon {

    font-size: 38px;

    margin-bottom: 5px;

}



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

@keyframes pulse {

    0% {
        transform: scale(1);
        opacity: 1;
    }

    50% {
        transform: scale(1.3);
        opacity: .6;
    }

    100% {
        transform: scale(1);
        opacity: 1;
    }

}



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

@media (max-width: 950px) {

    .process-grid {

        grid-template-columns:
            repeat(2, 1fr);

    }

}


@media (max-width: 700px) {

    .quick-info {

        margin-top: 0;

        padding: 15px 0;

        background: #f7faff;

    }


    .quick-info-container {

        grid-template-columns: 1fr;

    }


    .quick-item {

        border-right: none;

        border-bottom:
            1px solid #e7edf5;

    }


    .quick-item:last-child {

        border-bottom: none;

    }


    .process-progress {

        margin-bottom: 40px;

    }


    .progress-item strong {

        font-size: 9px;

    }


    .progress-circle {

        width: 45px;
        height: 45px;

        font-size: 11px;

    }


    .progress-line {

        top: 22px;

        left: 12%;
        right: 12%;

    }


    .process-grid {

        grid-template-columns: 1fr;

    }


    .process-card p {

        min-height: auto;

    }

}